811-51-8Relevant articles and documents
Chemical and Theoretical Comparison between Phosphido (X = PR2) and Thiolato (X = SR) Bent Niobocenes of the Type . Structure of >
Kubicki, Marek M.,Oudet, Pascal,Martin, Christine,Barre, Christophe
, p. 3699 - 3704 (1995)
The hydrido complexes reacted with MeI to afford the iodo derivatives 1.The reaction of 1 with Na(SEt) led to the terminal thiolato complexes 2.Compounds 2 were used to bind the metal carbonyl fragments Fe(CO)4 and M(CO)5 from and (thf = tetrahydrofuran) respectively.The corresponding monothiolato-bridged complexes n>> 3 (M = Fe, n = 4; M = Mo or W, n = 5) were obtained only in the case of L = CO and no dibridged μ-SEt, μ-Co complex was formed.The new complexes 1-3 were characterized by IR, 1H and 31P NMR spectroscopies.The X-ray analysis of > showed an endo position of the ethyl group with respect to the CO ligand bound to the niobium.The results of extended-Hueckel molecular orbital (EHMO) conformational calculations carried out on the model complexes and are compared, and the importance of electronic and steric effects deduced.An explanation for the non-formation of dibridged μ-SEt, μ-CO complexes is attempted on the basis of EHMO and X-ray results.
Synthesis and reactivity of thiolate-bridged multi-iron complexes supported by cyclic (alkyl)(amino)carbene
Zhang, Yanpeng,Mei, Tao,Yang, Dawei,Zhang, Yixin,Wang, Baomin,Qu, Jingping
, p. 15888 - 15896 (2017/12/02)
The combined utilization of Me2-cAAC (Me2-cAAC =:C(CH2)(CMe2)2N-2,6-iPr2C6H3) and thiolates as supporting ligands enables the access of unprecedented carbene coordinated thiolate-bridged diiron(ii) complexes [(Me2-cAAC)Fe(μ-SR)(Br)]2 (R = Me, 3; R = Et, 4). The coordination environment of each tetrahedral iron(ii) center in complexes 3 and 4 is composed of one terminal bromide atom, one carbene carbon atom and two thiolate sulfur atoms, which is similar to the carbide-containing sulfur-rich environment of iron centers in the belt region of the FeMo-cofactor. Interestingly, when NaSCPh3 was chosen as the thiolate ligand, C-S bond homolysis occurred to form a rare [3:1] site-differentiated cubane-type cluster [(Me2-cAAC)Fe4S4(Br)3][Me2-cAACH] (5). Furthermore, complexes 3 and 4 exhibit good exchange reactivity toward the azide anion to give novel thiolate-bridged diiron complexes with two azido ligands in a trans arrangement.
One-pot synthesis and characterization of chalcopyrite CuInS2 nanoparticles
Sun, Chivin,Cevher, Zehra,Zhang, Jin,Gao, Bo,Shum, Kai,Ren, Yuhang
, p. 10629 - 10633 (2014/07/07)
We synthesized tetragonal chalcopyrite CuInS2 (CIS) nanoparticles from molecular single source precursors, (Ph3P) 2Cu-(μ-SEt)2In(SEt)2, by a one-pot reaction in the presence of 3-mercaptopropionic acid at reaction times of 3 hours or less with high yields. In our approach, NaCl as a by-product was used as a heat transfer agent via a conventional convective heating method. We tuned the sizes of nanoparticles through manipulation of the reaction temperature, reaction time, precursor, and thiol concentration. The sizes of nanoparticles from 1.8 nm to 5.2 nm were obtained as reaction temperatures were increased from 150 °C to 190 °C. The method developed in this study is scalable to achieve production of ultra-large quantities of tetragonal chalcopyrite CIS nanoparticles. The resulting nanoparticles were analyzed by UV-vis spectroscopy, X-ray diffraction, EDAX, and HRTEM.