1988
DOI: 10.1002/zaac.19885560106
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Thiochlorowolframate von Wolfram(V) und ‐(VI). Die Kristallstrukturen von PPh4[WSCl4] und (PPh4)2[WS2Cl4] · 2 CH2Cl2

Abstract: Sowohl durch die Reaktion von WCl5 mit NEt4SH als auch durch Reduktion von WSCl4 mit NEt4I in Dichlormethan entsteht diamagnetisches (NEt4)2[WSCl4]2, in dem die Wolframatome über die Schwefelatome verknüpft sind. Reduziert man WSCl4 dagegen mit PPh4I, so entsteht PPh4[WSCl4], dessen Anion monomer ist. Bei der Umsetzung von WCl6 mit H2S in CH2Cl2 entsteht WS2Sl2 als braunes, schwerlösliches Pulver, das nach dem IR‐Spektrum eine Struktur mit terminalen W=S‐ und verbrückenden WSW‐Gruppen hat. Aus WS2Cl2 und PPh… Show more

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Cited by 14 publications
(4 citation statements)
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“…The distorted octahedral complexes Tp*WS­(OPh) 2 and Tp*WS­(SePh) 2 contain a terminal sulfido ligand, two monodentate OPh or SePh ligands, and a facial, terdentate Tp* ligand. The W–S1 distances of 2.161(1) and 2.128(2) Å, respectively, are typical of {WS} 3+ units in WSCl 3 (MeSCH 2 CH 2 SMe) at 2.146(11) Å, [WSCl 4 ] − at 2.064(5) Å, and Tp*WS­{S 2 C 2 (CO 2 Me) 2 } at 2.108(3) Å . For Tp*WS­(OPh) 2 , the W–O2 and W–O3 distances are 1.938(3) and 1.971(2) Å, and the associated W–O–C angles are 149.2(3)° and 132.9(2)°, respectively.…”
Section: Resultsmentioning
confidence: 98%
See 1 more Smart Citation
“…The distorted octahedral complexes Tp*WS­(OPh) 2 and Tp*WS­(SePh) 2 contain a terminal sulfido ligand, two monodentate OPh or SePh ligands, and a facial, terdentate Tp* ligand. The W–S1 distances of 2.161(1) and 2.128(2) Å, respectively, are typical of {WS} 3+ units in WSCl 3 (MeSCH 2 CH 2 SMe) at 2.146(11) Å, [WSCl 4 ] − at 2.064(5) Å, and Tp*WS­{S 2 C 2 (CO 2 Me) 2 } at 2.108(3) Å . For Tp*WS­(OPh) 2 , the W–O2 and W–O3 distances are 1.938(3) and 1.971(2) Å, and the associated W–O–C angles are 149.2(3)° and 132.9(2)°, respectively.…”
Section: Resultsmentioning
confidence: 98%
“…An unstable bis­(dithiolene)-Mo­(V) complex, NEt 4 [MoS­(S 2 C 6 H 8 ) 2 ], has also been reported but its isolation was thwarted by rapid dimerization . Very few mononuclear sulfido-W­(V) complexes are known; they include structurally characterized WSCl 3 (MeSCH 2 CH 2 SMe), PPh 4 [WSCl 4 ], and Tp*WS­{S 2 C 2 (CO 2 Me) 2 } …”
Section: Introductionmentioning
confidence: 99%
“…8,35 Rather surprisingly, attempts to isolate the (unknown) anion, [WSeCl 5 ] − with a range of cations, including [PPh 4 ] + and [NEt 4 ] + , have been unsuccessful thus far, whereas the [WSCl 5 ] − and [WS 2 Cl 4 ] 2− ions are well known. 36,37…”
Section: Density Functional Theory (Dft) Calculationsmentioning
confidence: 99%
“…In this paper we describe a new, more efficient and controllable approach using the tungsten(VI) tetrachloridedisulfide dianion, [WS2Cl4] 2-, specifically designed to overcome this problem, while providing the required 1:2 tungsten: sulfur ratio in order to eliminate the requirements for a proton source. 18 The IR spectrum of the new [NEt4]2[WS2Cl4] salt (Fig. S2 ESI) contains a strong band at 498 cm -1 assigned as ν(W=S), but a cation absorption obscures this region in the spectrum of [PPh4]2[WS2Cl4].…”
mentioning
confidence: 99%