The structures of [Ph2XSNSPh2NH]+ cations (XNH, O)

Fluorothiazynes, 50 years old and still exciting: electrophilic attack at the thiazyl nitrogen of NSF2NS(O)F2

“…A bonding situation similar to 3 is found in the corresponding aryl derivative NBSAr 2 -N=S(=O)Ar 2 [15] and the electronically related imino derivative NBSAr 2 -N=S(=NH)Ar 2 [15]. According to the X-ray structure of the latter compound three different types of SN-bonds are found for the NBS-N=S backbone, the bond distances being in the region of SN triple, single and double bonds.…”

“…In contrast to 3, the aryl derivatives are reasonably stable against hydrolysis, and a much higher basicity of the thiazyl nitrogen is observed. Protonation [15] and alkylation [16] is possible under mild conditions. In contrast to the adducts and cations of 3 described in this paper, the addition of the electrophiles to the aryl counterparts leads to a significant lengthening of the thiazyl bond [22].…”

“…In the present paper we report on interactions of NBSF 2 -N=S(O)F 2 with metal cations, Lewis acids (AsF 5 and BF 3 ) and the alkylation with CH 3 OSO + to give the corresponding complexes, adducts and salts. The structures of these compounds are described and the bonding properties will be compared with those of the related aryl system NBSPh 2 -N=S(X)Ph 2 (X = O, NH) [14,15] and HN=SPh 2 -N=S(X)Ph 2 [15] recently reported by Yoshimura, Fujii et al…”

Syntheses and Crystal Structures of and

“…Mews et al prepared trifluoro-λ 6 -sulfanenitrile (F 3 S≡N) and its derivatives (F 2 RS≡N, e.g., R = Me 2 N-, F 2 (O=)S=N-), and investigated their metal coordination chemistry [1][2][3]. Recently, we prepared fluoro(diphenyl)-λ 6 -sulfanenitrile (Ph 2 FS≡N) and reported the formation of the various substituted λ 6 -sulfanenitriles [4][5][6][7][8][9][10][11][12][13][14]. Among them, new types of λ 6 -sulfanenitrile with nitrilo and imino groups (type A) or two nitrilo groups (ndsdsd, type B) at both ends have been shown to complexes as bidentate N,N' ligands.…”

Synthesis and Properties of Ph2S(N(Ph2)S⋮N)2

“…Inorganic rings and chains based on skeletons of nitrogen, sulfur, and/or heteroatoms have attracted considerable attention because of their structures and reactivities. They also offer potential access to new materials with interesting and useful properties. , Recently, we have described the synthesis of Ph 2 (X)SN(Ph 2 )S⋮N [X = LP ( 3 ), HN ( 4 ), and O] and established that fluoro(diphenyl)-λ 6 -sulfanenitrile (Ph 2 FS⋮N) ( 2 ) is a potentially useful building block in S−N−S chemistry . Moreover, the crystal and electronic structures of 3 and 4 were elucidated by X-ray crystallographic analysis and quantum chemical calculations, respectively .…”