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Manders B Sciandrone L Hauck G Kristen MO 《Angewandte Chemie (International ed. in English)》2001,40(21):4006-4007
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《高等学校化学研究》1985,(1)
Dr.Yang Shixian(Shao-tseng Yang),the Editor-in-chief of the Chemical Journalpassed away on February 19,1985,was a well-renowned Chinese educationa-list and chemist.He was deputy to the first five Sessions of the National People’sCongress,member of the Standing Committee of the Fifth and Sixth Sessions of theChinese Poeple’s Political Consultative Conference,member of the Academic Councilof the Chinese Academy of Sciences,director and then honorary director 相似文献
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H. Tanaka 《Journal of Thermal Analysis and Calorimetry》2000,60(3):715-720
Bibliography
List of Selected Papers of Prof. Dr. Jaroslav Šesták 相似文献5.
Coordination polymers of Cr(III), Mn(II), Fe(II), Co(II), Ni(II), and Cu(II) with a Schiff base derived from 4,4′ - (4,4′ -biphenylylene bisazo) di (salicylaldehyde) and m-toluidine have been prepared. All the polychelates are dark colored and insoluble in common organic solvents. Magnetic susceptibility and electronic and IR spectra of the polychelates have been studied. All the polychelates except Cu(II) show octahedral structures while Cu(II) polychelate is suggested to be a square planar. 相似文献
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Collman JP Boulatov R Jameson GB 《Angewandte Chemie (International ed. in English)》2001,40(7):1271-1274
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Homogeneous blends of poly(L-lactide) (M n = 30 000 to 40 000) and poly(β-propiolactone) or poly(ε-caprolactone) were prepared in solution. The solvent-free blends were subjected to transesterification catalyzed by means of methyl triflate, triflic acid, boron trifluoride, or tributyltin methoxide at 100 or 150°C. At 100°C, transesterification was barely detectable even after 96 h. When poly(β-propiolactone) was used as the reactant at 150°C, degradation was faster than transesterification regardless of the catalyst. The same negative result was obtained for heterogeneous blends of poly(L-lactide) and poly(glycolide). In the case of poly(ε-caprolactone), copolyesters with slightly blocky sequences were obtained with tributyltin methoxide as catalyst, whereas the acidic catalysts caused rapid degradation. The copolyesters were characterized by means of 1H-NMR spectroscopy with regard to their molar composition, by means of 13C-NMR spectroscopy with regard to their sequences, and by means of differential scanning calorimetry with regard to crystallinity. 相似文献
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《高分子科学》1995,(3)
Xin-De Feng (S. T. Voong) was born on October 12, 1915 in thetown of Tongli, Wujiang County, Jiangsu Province, China. He received aB. S. degree in chemistry from Tsinghua University in 1937 and a Ph. D.from University of Notre Dame in 1948 under the guidance of his adviserProfessor C. C. Price. He has associated as a professor with several 相似文献
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Analytical and Bioanalytical Chemistry - 相似文献
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Ciufolini MA Valognes D Xi N 《Angewandte Chemie (International ed. in English)》2000,39(14):2493-2495
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Schreiner PR 《Angewandte Chemie (International ed. in English)》2000,39(18):3239-3241
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《Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy》1987,43(6):771-780
The new complexes M(LH)2 (M = Pd,Pt), ML(M = Pd,Cu) and ML · H2O (M = Ni,Zn), where LH2 = N,N′-dimethylmonothio-oxamide, have been prepared. The complexes were characterized by metal analyses, thermal methods and spectral (i.r., Raman, u.v.—vis.) studies. The vibrational analyses of the complexes are given using NH/ND, CH3/CD3 and metal isotopic substitutions. The Ni(II), Pd(II), Pt(II) and Cu(II) compounds are square planar. The monoanion LH− shows a chelated bidentate S,O-coordination, while the doubly deprotonated L2− acts as a bridging S,N/N,O-tetradentate ligand giving polymeric structures. 相似文献