(1-(1,3-butadienyl) sulfide, and methylthiomethyl 1-(1,4-butadienyl) selenide, vinyl 1-(1,3-butadienyl) sulfide, and methylthiomethyl 1-(1,3-butadienyl) selenide (the latter two with DMSO participation). The reaction of vinylacetate with tellerium gives mainly di-1-(1,3-butadienyl) telluride. A series of reactions between DMSO and selenium leading to dimethyl sulfide, dimethyl sulfoselenide, and methylthiomethyl
Nuclear magnetic resonance investigations of configurational non-rigidity in dinuclear platinum(<scp>IV</scp>) complexes. Part 4. Ring reversal, pyramidal inversion, and novel fluxional rearrangements in [(PtXMe<sub>3</sub>)<sub>2</sub>(MeSCH<sub>2</sub>SeMe)] complexes
作者:Edward W. Abel、Kenneth Kite、Keith G. Orrell、Vladimir Šik、Bruce L. Williams
DOI:10.1039/dt9810002439
日期:——
Dinuclearcomplexes of the type DL-[(PtXMe3)2(MeSCH2SeMe)] containing both PtIV–S and PtIV–Se bonds have been isolated. Detailed variable-temperature n.m.r. studies have established the existence of ligand ring reversal, pyramidal inversion of both S and Se atoms, ligand commutation (switching) between Pt atom pairs and scrambling of the platinum methyl environments which is considered to be a consequence
分离了同时具有Pt IV -S和Pt IV -Se键的DL -[(PtXMe 3)2(MeSCH 2 SeMe)]型双核复合物。详细的可变温度NMR研究已经确定了配体环反转,S和Se原子呈锥体倒置,Pt原子对之间的配体换向(转换)和铂甲基环境的加扰的存在,这被认为是快速配体的结果。换向产生高度非刚性的七坐标Pt IV中间的。已经为这些非离解的动态过程计算了精确的能垒。尽管S / Se双重反转可能具有非同步特性,但显示光谱仅对Se反转敏感。
Reactions of dichloromethane with chalcogens and dimethyl chalcogenides in the hydrazine hydrate-alkali system
作者:E. P. Levanova、V. Yu. Vshivtsev、E. N. Sukhomazova、V. A. Grabel’nykh、N. V. Russavskaya、E. R. Zhanchipova、L. V. Klyba、A. I. Albanov、N. A. Korchevin
DOI:10.1134/s1070363208090156
日期:2008.9
Methods of synthesis of compounds MeY(CH2Y)(n) Me (Y=S, Se, Te; n = 1-3) containing several identical or different chalcogen atoms are suggested. The methods are based on the reactions of dichloromethane with elemental chalcogens (Y2-) and dimethyl dichalcogenides (MeY-) activated in the system hydrazine hydrate-alkali. The effect of the chalcogen on the reactivity toward dichloromethane is qualitatively assessed. With elemental tellurium in the system hydrazine hydrate-alkali, reduction of one chlorine atom in dichloromethane and formation of methyltellanyl derivatives are observed.