Conformational isomers of 1,2,5,6-tetrathiocins and the photoisomerization of a 1,2,5,6-tetrathiocin into a 1,2,3,6-tetrathiocin: X-ray structures of (C6X4S2)2 (X = F, Cl) and C6F4SSSC6F4S
制备了一系列具有不同苯二硫代酸酯(一般缩写:bdt 2–)环取代(S 2 C 6 X 4 2–)的钴双(苯二硫代)钴配合物,并将其吸附在由(a)氧化石墨烯(RGO)组成的廉价电极上电沉积在掺氟氧化锡(FTO)和(b)高度有序的热解石墨(HOPG)上。催化剂吸附的电极通过X射线光电子能谱表征。随着卤化物取代的增加,TBA [Co(S 2 C 6 H 4)2从2.7×10 –11 mol cm –2]显着提高了整个配体系列的催化剂负载量(1)到TBA [Co(S 2 C 6 Cl 4)2 ](3)]增加到6.22×10 –10 mol cm -2,并增加苯二硫代盐配体的环大小[最高达3.10×10 –9 mol cm –2用于TBA [Co(S 2 C 10 H 6)2 ](6)]。对固定在HOPG上的配合物进行电催化分析会引起还原电流响应,表明存在三氟乙酸的弱酸性水溶液(pH 2-4)时产生二氢,相对于SHE,过电势约为0
Proton Relay Effects in Pyridyl‐Appended Hydrogenase Mimics for Proton Reduction Catalysis
作者:Riccardo Zaffaroni、Wojciech I. Dzik、Remko J. Detz、Jarl Ivar van der Vlugt、Joost N. H. Reek
DOI:10.1002/ejic.201900072
日期:2019.6.2
Hydrogenase enzymes are fast proton reduction catalysts, and their synthetic mimics have been widely studied in the context of solar fuel applications. The mimics are still not nearly as effective as the enzyme, as they lack crucial structural elements, including proton-relays and electron reservoirs. In this contribution we report di-iron hydrogenase model complexes of the type Fe2(X4bdt)(PPy3)n(CO)6-n
Low loss high refractive index vinyl sulfide compounds and method of making same
申请人:——
公开号:US20040044251A1
公开(公告)日:2004-03-04
The invention is directed to aromatic vinyl sulfide compounds of general formula A(—S—CH═CH
2
)
z
, wherein z is in the range of 1-4 and A represents highly halogenated and highly halogenated-deuterated phenyl, biphenyl and naphthalene compounds; highly halogenated and highly halogenated-deuterated biphenyl ethers and thioethers; and highly halogenated and highly halogenated-deuterated unsaturated 5- and 6-member heterocyclic ring systems containing carbon and at least one heteroatom selected from the group consisting of nitrogen, oxygen and sulfur. The aromatic vinyl sulfide compounds of the invention can be used to prepare elements and devices suitable for use in optical communications.
Catalytic Light-Driven Generation of Hydrogen from Water by Iron Dithiolene Complexes
作者:Hongjin Lv、T. Purnima A. Ruberu、Valerie E. Fleischauer、William W. Brennessel、Michael L. Neidig、Richard Eisenberg
DOI:10.1021/jacs.6b05040
日期:2016.9.14
The development of active, robust systems for light-driven hydrogenproduction from aqueous protons based on catalysts and light absorbers composed solely of earth abundant elements remains a challenge in the development of an artificial photosynthetic system for water splitting. Herein, we report the synthesis and characterization of four closely related Fe bis(benzenedithiolate) complexes that exhibit
An electroconductive polyolefin composition comprising (1) 100 parts by weight of a polyolefin resin, (2) 10 to 60 parts by weight of carbon black, (3) 0.1 to 6 parts by weight of sulfur and (4) at least 0.1 part by weight of one or two specified accelerators, and optionally containing 5 to 60 parts by weight of atactic polypropylene.
Low-hygroscopic sulfur-containing urethane resin, coating material and adhesive
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0296502A1
公开(公告)日:1988-12-28
There are here provided a low-hygroscopic sulfur-containing and crosslinked structure-having urethane resin, urethane resin plate and shape-recoverable molding article which is prepared by first selecting a polyisocyanate compound having m (which is an integer of 2 or more) isocyanate groups in one molecule and a polythiol compound having n (which is an integer of 2 or more) thiol groups in one molecule so that the total number of m + n may be 5 or more, and then polymerizing the composition of the polyisocyanate compound and the polythiol compound; a low-hygroscopic sulfur-containing urethane coating material which comprises the above composition; and a low-hygroscopic sulfur-containing urethane adhesive which comprises the composition. In the resin of the present invention, its water absorption is as low as a level of 0.02 to 0.20% by weight, and its adhesion to a hard coating film is also good. The coating material and the adhesive of the present invention have a long pot life, a low water absorption and a high adhesive force even after dipping in warm water.