Hexathio‐digermanates and ‐distannates: A New Type of Dimeric Tetrahedral Ion

Abstract

spectrum (film): 1690 cm-1 (vc=o amide), 1730 cm-1 (vc-0 ester), 1520 cm-1 (VNH), and 3300 cm-1 (VNH). N M R spectrum (CC14, T): 1.82 (HC=O).

Complexations of Ln(III) with SnS4H and Sn2S6: Solvothermal syntheses and characterizations of lanthanide coordination polymers with thiostannate and polyamine mixed ligands

“…In the Raman spectrum of 1a, the symmetric Sn-S t stretching vibration is located at about 374 cm À 1 and the resonance at 364 cm À 1 may be caused by a symmetric Sn-S bridging mode [25]. In the Raman spectrum of 2a, the resonance of the symmetric Sn-S(2) t stretching mode is located at 380 cm À 1 , and the resonance for the Sn-S(1) t vibration is found at about 368 cm À 1 [26]. The splitting of Sn-S t resonance for the [Sn 2 S 6 ] 4 À ligand is also observed in the complex [{Co(tren)} 2 (Sn 2 S 6 )] containing a μ-Sn 2 S 6 ligand [8].…”

“…The Sn-S br vibration occurs at a lower wave number of 345 cm À 1 , whereas the Sn 2 S 2 ring vibration appears at 287 cm À 1 . Below 200 cm À 1 , a detailed assignment of the absorptions is not possible because lattice vibrations overlap with SnS 2 wagging and twisting modes [25][26][27].…”

New Thiostannates Synthesized Under Solvothermal Conditions: Crystal Structures of (trenH)2Sn3S7 and {[Mn(tren)]2Sn2S6}

“…An asymmetric stretching vibration occurs at 364 cm −1 for 1 and at 378 cm −1 for 2, and the symmetric stretching modes of the equatorial SnS 3 unit at 340 and 346 cm −1 , respectively. The signals at 278 and 281 cm −1 are assigned to the symmetric stretching vibration of the Sn 2 S 2 ring [35,60].…”

Structure cristalline d'un thiogermanate de plomb á chaïnes infinies (PbGeS3)n

“…II est int6ressant de rapprocher ce travail de celui de Krebs et al (1970). II est int6ressant de rapprocher ce travail de celui de Krebs et al (1970).…”

“…L'6tude structurale de Na2GeS3 montre qu'il s'agit d'un polythiogermanate ~t chaines infinies (GeS3) 2"-(Olivier-Fourcade, Philippot, Ribes & Maurin, 1972). Une exception est connue pour Na4Ge2S6.14H20 (Krebs, Pohl & Schiwy, 1970), qui pr6sente l'anion Ge2S 4-, deux t6tra~dres GeS4 sont accol6s par une ar~te. Les r6gles de condensation de ces phases sont comparables ~t celles connues pour les phases 'oxo' (mise en commun d'un seul sommet entre deux t6tra~dres plusieurs sommets d'un m~me t6tra~dre pouvant ~tre concern6s).…”