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    Wyświetlanie 1-12 z 12
    Tytuł:
    Application of 1H and 31P NMR to topological description of a model of biological membrane fusion Topological description of a model of biological membrane fusion
    Autorzy:
    Janiak-Osajca, Agnieszka
    Timoszyk, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1039735.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    vesicle
    topology
    fusion
    31P-NMR
    1H-NMR
    Opis:
    The process of biological membrane fusion can be analysed by topological methods. Mathematical analysis of the fusion process of vesicles indicated two significant facts: the formation of an inner, transient structure (hexagonal phase - HII) and a translocation of some lipids within the membrane. This shift had a vector character and only occurred from the outer to the inner layer. Model membrane composed of phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylserine (PS) was studied. 31P- and 1H-NMR methods were used to describe the process of fusion. 31P-NMR spectra of multilamellar vesicles (MLV) were taken at various temperatures and concentrations of Ca2+ ions (natural fusiogenic agent). A 31P-NMR spectrum with the characteristic shape of the HII phase was obtained for the molar Ca2+/PS ratio of 2.0. During the study, 1H-NMR and 31P-NMR spectra for small unilamellar vesicle (SUV), which were dependent on time (concentration of Pr3+ ions was constant), were also recorded. The presence of the paramagnetic Pr3+ ions permits observation of separate signals from the hydrophilic part of the inner and outer lipid bilayers. The obtained results suggest that in the process of fusion translocation of phospholipid molecules takes place from the outer to the inner layer of the vesicle and size of the vesicles increase. The NMR study has showed that the intermediate state of the fusion process caused by Ca2+ ions is the HII phase. The experimental results obtained are in agreement with the topological model as well.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 2; 219-224
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detection of acylglycines in urine by 1H and 13C NMR for the diagnosis of inborn metabolic diseases
    Autorzy:
    Gryff-Keller, Adam
    Kraska-Dziadecka, Anna
    Kubica, Dominika
    Powiązania:
    https://bibliotekanauki.pl/articles/1039667.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    13C NMR
    urinalysis
    inherited metabolic disease
    1H NMR
    acylglycine
    Opis:
    A range of inborn metabolic diseases result in abnormal accumulation of acylglycines in body fluids. Therefore, detection of these metabolites is important for diagnostic purposes. 1H and 13C NMR spectroscopies have successfully been applied for both qualitative and quantitative determinations of various acylglycines in urine samples from patients suffering from metabolic diseases connected with excretion of these compounds. Various acylglycines were identified in test urine samples from 15 patients suffering from five different metabolic diseases, providing information which could be crucial for their diagnoses. The paper reports complete 1H and 13C NMR data of 11 acylglycines, which is essential for this type of NMR analysis of body fluids. NMR spectroscopy has been proven effective in determining the presence as well as the levels of acylglycines in urine. The proposed method is rapid, simple and requires minimal sample treatment.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 4; 613-617
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and anticancer evaluation of some coumarin and azacoumarin derivatives
    Autorzy:
    Bakare, Safyah B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1849302.pdf
    Data publikacji:
    2021
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Coumarin
    azacoumarin
    1H-NMR spectrum
    13C-NMR spectrum
    anticancer
    Opis:
    Coumarin and its nitrogen analogue 1-aza coumarin are a class of lactones and lactams, respectively, which are indispensable heterocyclic units to both chemists and biochemists. 1-Aza coumarin derivatives, which ultimately metabolize as the corresponding 8-hydroxy coumarins in the biological system are therefore found to be very good anti-inflammatory, anti-cancer, and analgesic agents. A series of hybrid substituted coumarin and azacoumarin-3-carboxylic acid derivatives (8-methoxycoumarin-3-carboxylic acid (4a), 8-methoxyazacoumarin-3-carboxylic acid (4b), 5-bromo-8-methoxycoumarin-3-carboxylic acid (5a), 5-bromo-8-methoxyazacoumarin-3-carboxylic acid (5b), 2-acetoxy-5-bromo-8-methoxyquinoline-3-carboxylic acid (6), and 5,7-di(phenylazo)-8-methoxycoumarin-3-carboxylic acid (7) were synthesized and structurally proved using spectral and elemental analysis data. Substituted coumarin-3-carboxylic acid (4a and 5a) and Substituted azacoumarin-3-carboxylic acid (4b, 5b and 6) were tested for their in vitro cytotoxic activity against MCF-7 and HepG-2 cell lines.
    Źródło:
    Polish Journal of Chemical Technology; 2021, 23, 2; 27-34
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of a wide spectrum of inherited metabolic disorders by 13C NMR spectroscopy
    Autorzy:
    Bal, Dominika
    Kraska-Dziadecka, Anna
    Gradowska, Wanda
    Gryff-Keller, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/1040823.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    urine
    13C NMR
    inherited metabolic disease
    1H NMR
    marker metabolite
    Opis:
    High-resolution 1H NMR spectroscopy of body fluids has proved to be very useful in diagnostics of inherited metabolic diseases, whereas 13C NMR remains almost unexploited. In this paper the application of 13C NMR spectroscopy of fivefold concentrated urine samples for diagnosis of selected metabolic diseases is reported. Various marker metabolites were identified in test urine samples from 33 patients suffering from 10 different diseases, providing information which could be crucial for their diagnoses. Spectra were accumulated for 2 h or overnight when using spectrometers operating at 9.4 or 4.7 T magnetic fields, respectively. Interpretation of the measurement results was based on a comparison of the peak positions in the measured spectrum with reference data. The paper contains a table with 13C NMR chemical shifts of 73 standard compounds. The method can be applied individually or as an auxiliary technique to 1H NMR or any other analytical method.
    Źródło:
    Acta Biochimica Polonica; 2008, 55, 1; 107-118
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Translocation of polysialic acid across model membranes: Kinetic analysis and dynamic.
    Autorzy:
    Janas, Teresa
    Krajiński, Henryk
    Timoszyk, Anna
    Janas, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1044181.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    polysialic acid
    1H-NMR
    electrical equivalent circuit
    polycation flux
    polyanion flux
    lipid bilayers
    membrane transport
    Opis:
    Transmembrane translocation of polyion homopolymers takes place in the case of polyanionic polysialic acid (polySia), polyanionic polynucleotides and polycationic polypeptides. The purpose of this work was to determine the role of membrane electrical parameters on the kinetics of polyion translocation, the influence of polysialic acid on ion adsorption on positively charged membrane surface and the dynamics of the phospholipid hydrocarbon chains and choline group by using 1H-NMR. The analysis of polyion translocation was performed by using the electrical equivalent circuit of the membrane for the initial membrane potential equal to zero. The changes in polysialic acid flux was up to 75% after 1 ms in comparison with the zero-time flux. Both a decrease of membrane conductance and an increase of polyion chain length resulted in the diminution of this effect. An increase of praseodymium ions adsorption to positively charged liposomes and an increase of the rate of segmental movement of the -CH2 and -CH3 groups, and the choline headgrup of lipid molecules, was observed in the presence of polySia. The results show that the direction of the vectorial polyion translocation depends both on the membrane electrical properties and the degree of polymerization of the polymer, and that polysialic acid can modulate the degree of ion adsorption and the dynamics of membrane lipids.
    Źródło:
    Acta Biochimica Polonica; 2001, 48, 1; 163-173
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie metod spektroskopowych w badaniach procesów i produktów polimeryzacji rodnikowej
    Applying of spectroscopic methods in the investigation of radical polymerization processes and products
    Autorzy:
    Pabin-Szafko, B.
    Wiśniewska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1286985.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
    Tematy:
    polimeryzacja rodnikowa
    inicjatory azowe
    spektroskopia UV-VIS
    1H NMR
    TGA-FTIR
    radical polymerization
    azoinitiators
    UV-Vis spectroscopy
    Opis:
    Zastosowanie metod spektroskopowych w chemii polimerów pozwala na uzyskanie niezbędnych informacji przy identyfikowaniu struktury chemicznej związków i tym samym na badanie różnych procesów, począwszy od syntezy inicjatorów, ich zachowania się w różnych warunkach (np. w reakcji rozpadu), poprzez badanie pozostałych substratów oraz produktów polimeryzacji, a także badanie innych procesów - modyfikacji czy destrukcji polimerów.
    The utilization of spectroscopic methods in polymer chemistry allows obtaining the necessary information to identify the chemical structure of compounds and moreover different processes studies, starting from initiator synthesis, their behaviour at various conditions (e.g. during thermal decomposition), through the other polymerization substrates and products study, and also other processes - polymers modification or destruction investigations.
    Źródło:
    Chemik; 2011, 65, 7; 637-642
    0009-2886
    Pojawia się w:
    Chemik
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers
    Autorzy:
    Al-Mutairi, Nabeel Hasan
    Al-Zubiedy, Ali
    Al-Zuhairi, Ali J
    Powiązania:
    https://bibliotekanauki.pl/articles/26081324.pdf
    Data publikacji:
    2023
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    hiperrozgałęziony poliester HBP
    monomer A2+B3
    polycondensation
    1H-NMR
    GPC
    hyperbranched polyester HBP
    A2+B3 monomer
    Opis:
    Compared to linear analogs, hyperbranched polymers (HBPs) have gotten much attention in the last decade because of their intrinsic globular topologies and distinctive features like low viscosity, high solubility, and a high degree of functionality. In this work, four types of hyperbranched polyester polymer HBPs have been synthesized using the A2+B3 polycondensation methodology. Firstly, the starting material B3 monomer (Pyrimidine-2,4,6-triol) has been synthesized using urea and malonic acid with the presence of sodium Na as the catalyst for the reaction. Secondly, four types of materials (tartaric acid TA, adipic acid AD, maleic acid MA, and phthalic anhydride PA) as A2 monomers were added to the starting material B3 monomer in an oil bath to prepare the four types of HBP. The chemical structure of HBPs was characterized by FTIR, and 1H-NMR. The molecular weight of the prepared HBPs was characterized by gel permeation chromatography GPC, and thermal properties were characterized by differential scanning calorimetry DSC and thermal gravimetric analysis TGA. FTIR results showed that there are new bands, such as C-O-C between A2 and B3 monomers, as indicated by 1H-NMR. In addition, GPC shows that the prepared polymers have a narrow molecular weight distribution with good thermal stability, as indicated by DSC and TGA.
    Źródło:
    Production Engineering Archives; 2023, 29, 1; 28--36
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badanie struktury i dynamiki N-terminalnych sekwencji dermorfiny i ich analogów z wykorzystaniem spektroskopii NMR w ciele stałym i rentgenografii
    Studies on the structure and dynamics of N-terminal sequences of dermorphin and their analogs by means of solid state NMR spectroscopy and XRD
    Autorzy:
    Trzeciak-Karlikowska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/171648.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    peptydy opioidowe
    oddziaływania CH-pi
    dynamika molekularna
    oddziaływanie peptyd–fosfolipid
    spektroskopia NMR
    1H Ultra Fast MAS NMR
    PISEMA MAS
    PILGRIM
    XRD
    opioid peptides
    CH-pi interactions
    molecular dynamics
    peptide–phospholipid interaction
    NMR spectroscopy
    Opis:
    Deltorphin I (Tyr-d-Ala-Phe-Asp-Val-Val-Gly-NH_2) and dermorphin (Tyr-d-Ala-Phe- -Gly-Tyr-Pro-Ser-NH_2) are natural opioid peptides that have been isolated from the skin of South American frogs [1]. The presence of d-amino acid is crucial for their biological activity. The synthetic analogs of given heptapeptides containing l-alanine are not analgesics [2]. Analysis of the influence of stereochemistry on molecular packing, dynamics and biological functions of neuropeptides is still important for receptor studies and practical applications (e.g. design of new selective pain killers). Presented research is focused on the structure and dynamics of two N-terminal sequences of dermorphin: tripeptide Tyr-d-Ala-Phe 1, tetrapeptide Tyr-D-Ala-Phe-Gly 2, and their analogs with l-alanine: Tyr-Ala-Phe 3 and Tyr-Ala-Phe-Gly 4, using solid state NMR and X-ray diffraction. This study clearly demonstrates that 1 and 2 crystallized under different conditions to form exclusively one structure [3, 4]. In contrast, tripeptide and tetrapeptide with l-Ala in the sequence very easily form different crystal modifications. Tyr-Ala-Phe 3 crystallizes into two forms: 3a and 3b [5], while Tyr-Ala-Phe-Gly 4 gives three modifications: 4a, 4b and 4c [4]. It seems that one of the factors, which can be important in the preorganization mechanism anticipating the formation of crystals, is the intramolecular CH-đ interaction between aromatic rings of tyrosine and/or phenylalanine and the methyl group of alanine. Such interaction is possible only for d-Ala residue. For l-Ala in the peptide sequence, the methyl group is aligned on the opposite side with respect at least to one of the aromatic groups. It can be further speculated that such internal CH-π contacts can also occur during the interaction of ligand–receptor, making the message sequence of opioid peptides more rigid and finally selective. By employing different NMR experiments (e.g. PISEMA MAS and PILGRIM) it was proven that the main skeleton of analyzed peptides is rigid, whereas significant differences in the molecular motion of the aromatic residues were observed [4, 6]. Solid state 2H NMR spectroscopy of samples with deuterium labeled aromatic rings: Tyrd4-d-Ala-Phe 5, Tyr-d-Ala-Phed5 6, Tyrd4-Ala-Phe 7, Tyr-Ala-Phe^d5 8 was used to analyze the geometry and time scale of the molecular motion. At ambient temperature, the tyrosine ring of sample 5 is rigid and in the sample 6 the phenylalanine ring undergoes a "π -flip". The tyrosine rings of form I of 7 and 8 are static, while the phenylalanine rings of form II of 7 and 8 undergo a fast regime exchange [6]. Variable temperature 2H measurements proved that the tyrosine and phenylalanine rings of two forms of compounds 7 and 8 became more mobile with increasing temperature. In contrast, the aromatic rings of samples 5 and 6 preserve their dynamics regime (static tyrosine and "π -flip" phenylalanine) in a large range of temperatures [6]. The analysis of 13C, 15N labeled tetrapeptide Tyr-D-Ala-Phe-Gly 2’-phospholipid membrane interactions suggests that peptide 2’ is aligned on the surface of the membrane (RFDR MAS) and the sandwich-like π -CH_3-π arrangement of the pharmacophore is preserved (DARR) [7].
    Źródło:
    Wiadomości Chemiczne; 2012, 66, 9-10; 867-891
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anti-tumor agents: Design, Synthesis, and Biological study of N-Substituted-7-hydroxy-1-azacoumarin-3-carboxamide derivatives as potent cytotoxic agents
    Autorzy:
    Bakare, Safyah B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1849341.pdf
    Data publikacji:
    2021
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    azacoumarin-3-carboxamide
    cytotoxicity
    1H
    13C-NMR
    spectraMCF-7
    Opis:
    Synthesis of ethyl 7-hydroxy-1-azacoumarin-3-carboxylate (3) was developed using ethyl-7-hydroxy coumarin-3-carboxylate and ammonium solution as the key synthons. Condensation of ethyl 7-hydroxy-1-azacoumarin-3-carboxylate with ammonium acetate and aniline to give N-substituted-7-hydroxy-1-azacoumarin-3-carboxamides (7-Hydroxy -1-azacoumarin-3-carboxamide (4) and N-phenyl 7-Hydroxy-1-azacoumarin-3-carboxamide (5)). Bromo derivative (N-phenyl 6, 8-dibromo-7-hydroxy-1-azacoumarin-3-carboxamide (6)) was obtained from halogenation of compound N-phenyl 7-Hydroxy-1-azacoumarin-3-carboxamide (5) with bromine in glacial acetic acid. N-phenyl-2,5-diacetoxy-6, 8-disubstituted-Quinoline-3-carboxamides (N-phenyl 2,7-diacetoxy-Quinoline-3-carboxamide (7) and N-phenyl 2,7-diacetoxy-6,8-dibromo-Quinoline-3-carboxamide (8)) were prepared via the acetylation of compounds 5 and 6 with acetic anhydride. Five compounds 4–8 were evaluated in vitro against more than one human tumor cell lines. Among the selected compounds, 6 showed the best in vitro cytotoxicity against the human cancer cell line; MCF-7 (with IC50 = 10.12 μM). In addition, cell cycle analysis of compound 6 demonstrated cell cycle arrest at G2/M phase and Pre-G1 apoptosis.
    Źródło:
    Polish Journal of Chemical Technology; 2021, 23, 1; 53-59
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Crystal structure and spectroscopic properties of 4-acetaminopyridine and its protonated form
    Autorzy:
    Koleva, B.B.
    Nikolova, R.
    Tchapkanov, A.
    Kolev, T.
    Mayer-Figge, H.
    Spiteller, M.
    Sheldrick, W.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/778733.pdf
    Data publikacji:
    2009
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    4-acetyloaminopirydyna
    struktura kryształów
    spektroskopia IR
    spektroskopia UV
    4-acetaminopyridine
    protonated form
    crystal structure
    solid-state linear polarized IR spectroscopy
    UV spectroscopy
    quantum chemical calculations
    1H and 13C NMR
    ESI-MS
    TGA and DSC
    Opis:
    4-Acetaminopyridine dihydrate and its protonated form, stabilized as the hydrochloride salt have been synthesized and spectroscopic elucidated in solution and in the solid-state by means of the inear-polarized solid state IR-spectroscopy (IR-LD), UV-spectroscopy, TGA, DSC, and the positive and negative ESI MS. Quantum chemical calculations were used to obtain the electronic structure, vibrational data and the electronic spectra. The spectroscopic and theoretical data are compared with the structure of the first compound obtained by single crystal X-ray diffraction. The effect of Npy protonation on the optical and magnetic properties of a 4-acetaminopyridine is discussed.
    Źródło:
    Polish Journal of Chemical Technology; 2009, 11, 3; 35-40
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solvent-free synthesis and assessment of substituent effects from IR & NMR spectra of some substituted benzylidene-5-ethyl-1,3,4-thiadiazole-2-amines
    Autorzy:
    Thirunarayanan, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/411670.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Benzylidene-5-ethyl-1
    3
    4-thiadiazole-2-amines
    solvent-free synthesis
    SiO2
    H3PO4
    IR spectra
    NMR spectra
    Hammett correlation
    Opis:
    A series containing ten titled compounds were synthesized by SiO2:H3PO4 catalyzed solvent-free condensation of substituted benzaldehydes and 2-amino-5-ethyl-1,3,4-thiadiazole under microwave irradiation. The yields of prepared amines are more than 90 %. The synthesized amines were characterized by their physical constants and spectroscopic data reported in literature earlier for known compounds. The assigned spectral group frequencies such as infrared νC=N, C-S-C, N-N (cm-1) and NMR chemical shifts (δ, ppm) of CH, C=N have been correlated with Hammett substituent constants, F and R parameters using single and multi-linear regression analysis. From the results of statistical analyses, the effects of substituent on the above spectral data have been discussed.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 5; 89-98
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and effects of substituent on (E)-styryl-3-methyl-2-thienyl chalcones
    Autorzy:
    Christuraj, P.
    Geetha, C.
    Vanangamudi, G.
    Arulkumaran, R.
    Manikandan, V.
    Rajakumar, P. R.
    Thirunarayanan, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1161056.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-ones
    FT-IR & NMR spectra
    Fly-ash:H3PO4 nanocatalyst
    Hammett correlation analysis
    Substituent effects
    UV
    solvent-free synthesis
    Opis:
    Series of eleven substituted of (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-ones compounds by cross-aldol condensation reaction of 3-methylthiophene-2-carbaldehyde with various substituted acetaldehyde in the occurrence of Fly-Ash: H3PO4 catalyst. The effect of catalytic activity of this fly-ash:H3PO4 nanocatalyst was studied with the obtained yield of products under solvent-free conditions. The synthesized substituted (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-one compounds was characterized by physical constants, UV, FT-IR, 1H & 13C-NMR spectral data. The infrared group frequencies of ʋ(cm-1) of COs-cis & s-trans, CHip and CHop, CH=CHop, >C=C
    Źródło:
    World Scientific News; 2018, 112; 55-73
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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