Highly conducting charge transfer complexes of benzo-1,3,2-dithiazol -2yl and its derivatives with teracyanoquinodimethane
作者:Gotthelf Wolmershäuser、Martin Schnauber、Thomas Wilhelm
DOI:10.1039/c39840000573
日期:——
Benzo-1,3,2-dithiazol-2yl and itsderivatives form chargetransfercomplexes with tetracyanoquinodimethane; their powder conductivities are as high as 3Ω–1/cm.
Electron spin resonance spectroscopy, stability and spin-probe properties of dithiazolyl, dithiadiazolyl, benzodithiazolyl and disulphenimidyl free radicals
作者:Stephen R. Harrison、Roger S. Pilkington、Leslie H. Sutcliffe
DOI:10.1039/f19848000669
日期:——
4-dithiadiazol-2-yl, 1,3,2-benzodithiazol-2-yl and dibenzenesulphenimidyl freeradicals, both in solution and in rigid matrices. The powder spectra were analysed to give values for the anisotropic g-factors and hyperfine coupling constants, and, in turn, these results were used by means of a simple e.s.r. tumbling theory to calculate radical radii from low-temperature fluid e.s.r. spectra. A simple correction
Polysulfane Antitumor Agents from <i>o</i>-Benzyne. An Odd−Even Alternation Found in the Stability of Products <i>o</i>-C<sub>6</sub>H<sub>4</sub>S<i><sub>x</sub></i> (<i>x</i> = 1−8)
作者:Edyta M. Brzostowska、Alexander Greer
DOI:10.1021/jo049418w
日期:2004.8.1
Benzyne is shown to add elemental sulfur and give rise to a series of polysulfane compounds. A computational and experimental study is presented. Odd-membered o-C6H4Sx rings (x = 1-8), except x = 1, which suffers from ring strain, have enhanced stability compared to even-membered rings. The acquisition of "odd-even" data may shed new light, revealing patterns on polysulfane stability and structure.
A versatile rigid binucleating ligand for Rh2(μ-Cl)2 moieties: its application as a catalyst in hydrogenation and cyclopropanation
作者:Francesc Teixidor、Ma Rosa Cirera、Clara Viñas、Raikko Kivekäs、Reijo Sillanpää、Albert Demonceau
DOI:10.1016/s0022-328x(03)00204-3
日期:2003.8
A rigid non-deforming "MCl2M" binucleating ligand [7,8-mu-S(4'-C6H3(CH3))S-C2B9H10](-) able to held the two rhodium atoms in a cooperative distance has been synthesized. The original two bridging chlorides are retained in [Rh-2(C5Me5)(2)Cl-27,8-mu-S(4'C6H3(CH3))S-C2B9H10}](+). Hydrogenation of 1-hexene is 10 times faster with [Rh-2(C5Me5)(2)Cl-27,8-mu-S(4'-C6H3(CH3))S-C2B9H10}](+) than with [Rh-2(C5Me5)(2)Cl-4]. A hydrogenation mechanism has been proposed which assumes that [Rh-2(C5Me5)(2)(Cl)(H)7,8-mu-S(4'-C6H3(CH3))S-C2B9H10}](+) is the first generated species in the process. (C) 2003 Elsevier Science B.V. All rights reserved.
Morris, Janet L.; Rees, Charles W., Journal of the Chemical Society. Perkin transactions I, 1987, p. 211 - 216