Tris(N,N-diethyldithiocarbamato-S,S')vanadium(III)

Abstract

The dihedral angles between these least-squares planes are 109.14 (4), 101.90 (6) and 106.55 (6) °. The three C atoms around the central V atom (C10, C20 and C30) form a regular triangle, with C--V---C angles close to 120 °. All of the above features show that compound (1) ( Fig. 1) can be viewed as a screw-propeller structure centered on the V atom, with the VSzCNC2 units as the screw leaves. C3~~7/C32 C33 ~~~N3 C31 AbstractIn the title compound, [V(CsHIoNS2)3], three diethyldithiocarbamate (Et2dtc-) ligands chelate to the V atom, with an average S--V---S bite angle of 72.77(4) °, forming a screw-propeller structure centered on the V atom. The average V--S bond distance is 2.434 (1),~,.

Tetrabutylammonium bis[4,4′-dimethyl-2,2′-(3,7-dimethyl-1H-4,2,1-benzothiazasiline-1,1-diyl)dibenzenethiolato]vanadium(III) acetonitrile tetrasolvate

“…The bond lengths and bond angles in compound (I) are shown in Table 1. The V-S distances of 2.416 (1) Å and 2.462 (1) Å are close to those of reported six-coordinate V III thiolate complexes (Ye et al, 2010;Zhu et al, 2002;Zhu et al, 1997).…”

“…For further mechanistic information, see: Block et al (1989). For related structures, see: Zhu et al (1997Zhu et al ( , 2002.…”

Nucleation kinetics and growth of high-quality DAST crystals with the aid of activated carbon as the adsorbent to micro-crystals in solutions

“…At this moment, the internal porespace of activated carbon will accommodate those micro-crystals and restrict the continuous growth, which keeps the solution with high stability. Similar influences have also been observed in the growth of organic LAP crystal [14].…”

Studies on the Synthetic System of V/Ag/S Cluster Compounds and Structural Characterizations of V2AgS4, V2Ag2S4, and V2O2(μ-S)2 Complexes

“…A broad resonance at 231 ppm was observed in the 51 V NMR (Figure b) of [Et 4 N] 2 2 , which is believed to be responsible for the V IV (μ-S) 2 V IV moiety with a V−V single bond and may also be an indication of the two V atoms being in a similar environment. A comparable example is [V 2 (S 2 ) 2 (CS 3 ) 4 ], − which shows its sharp 51 V resonance at 125 ppm in DMSO/CD 3 CN. It is obvious that V IV nuclei in complex [Et 4 N] 2 2 are less effectively shielded by five S atoms than those of [V 2 (S 2 ) 2 (CS 3 ) 4 ] 4- shielded by eight S atoms, giving rise to the 51 V signal downfield.…”

“…Here a reaction originally carried out with the intention of synthesizing a heterometallic V/Ag/S complex unexpectedly resulted in 4 and 5 . A mixture of (NH 4 ) 3 VS 4 (0.23 g, 1.0 mmol), Ag(PPh 3 ) 2 Cl (1.34 g, 2.0 mmol), Et 2 dtcNa·3H 2 O (1.00 g, 4.4 mmol), and Et 4 NCl (0.40 g, 2.4 mmol) in 35 mL of CH 3 CN was stirred for 24 h. After filtration the filtrate was allowed to stand for several days at room temperature, causing the separation of red-brown crystals, which were collected and were identified to be V(Et 2 dtc) 3 by X-ray diffraction . Yield: 0.12 g (24.2%).…”