The reactions of alkyltantalum chlorides with trimethyltin fluoride were found to be highly dependent on the number of organic ligands on tantalum as well as on the electronic and the steric nature of the substituents. The synthesis of trialkyltantalum difluorides of general formula (RCH2)(3)TaF2 (R = Ph, 1; R = p-Tol, 2; R = Me3Si, 3) and the first example of the alkyltantalum tetrafluoride (Me3Si)(2)CHTaF4 (8) are reported. The compounds (p-MeC6H4CH2)(3)TaF2, (Me3SnCl . Me3SnF . TaF5)(n), (Me3Si)(2)CHTaCl4, {(Me3Si)(2)CHTaCl4.[(Me3Si)(2)CH](2)Ta(2)Cl6(mu(2)-O)}, and (Me3Si)(2)CHTaF4 respectively have been characterized by single-crystal X-ray structural analysis.

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Adduct of a Five‐Membered Trisulfurdinitrogen Dioxide Ring with Titanium TetrachlorideReaction of S6N4O4 with TiCl4 lead to [(S3N2O2)TiCl4]2 (2). Single crystals of 2 were obtained by recrystallization from liquid SO2. 2 forms chains of five‐membered S3N2O2 rings connected by Ti2Cl8 units. The S2N2 part of the five‐membered ring may be described as a 6‐π electron system.

AbstractReaction of S6N4O4 with TiCl4 leads to (I).

AbstractAus Li[PhCN2(SiMe3)2] (1) oder PhCN2(SiMe3)3 (3) und SCl2 wird das Dithiatetrazocin PhC(NSN)2CPh (2) in guter Ausbeute erhalten. Entsprechend gewinnt man aus p‐MeC6H4CN2(SiMe3)3 (4), Li[p‐NO2C6H4CN2(SiMe3)2] (5) und Li[p‐NO2C6H4CN2(SiMe3)2] (6) mit SCl2 die Verbindungen p‐MeC6H4C(NSN)2CC6H4Me‐p (7), p‐NO2C6H4C(NSN)2CC6H4NO2‐p (8) und p‐CF3C6H4C(NSN)2‐CC6H4CF3‐p (9). Die Reaktion von 2/LiCl mit AgAsF6 in flüssigem SO2 ergibt [PhCN2S2]+[AsF6]− (10) und 3[PhCN2‐S2]+2[AsF6]−Cl− (11). Die Einkristallstrukturen von 10 und 11 werden mitgeteilt.

AbstractThe title compounds (IV) are prepared according to the scheme.

P. G. Jones, H. W. Roesky and J. Schimkowiak, J. Chem. Soc., Chem. Commun., 1988, 730 DOI: 10.1039/C39880000730

Abstract Cd[AsF6]2 (1) reacts with cyanogen to yield [Cd{(CN)2}2SO2][AsF6]2 (2). 2 crystallizes in the space group Pnma with cell constants a = 1475.2(3); b = 821.7(3); c = 1321.2(9) pm. The coordination sphere of cadmium consists of nine atoms (one oxygen, four fluorines and four nitrogens). Cyanogen forms polymeric links.

Abstract Cd[AsF6]2 (1) reacts with cyanogen to yield [Cd{(CN)2}2SO2][AsF6]2 (2). 2 crystallizes in the space group Pnma with cell constants a = 1475.2(3); b = 821.7(3); c = 1321.2(9) pm. The coordination sphere of cadmium consists of nine atoms (one oxygen, four fluorines and four nitrogens). Cyanogen forms polymeric links.

AbstractDie Reaktion von F2SNCN und NCSCF2CF2SCN mit AgAsF6 führt zu den Koordinationsverbindungen (F2SNCN)2AgAsF6 2 und (NCSCF2CF2SCN)2AgAsF6 5. NCSCF2CF2SCN 3 entsteht sowohl bei der Reaktion von ClSCF2CF2SCl mit HCN als auch mit Me3SiCN.4 ist ein Nebenprodukt aus der Umsetzung mit HCN. 4 konnte als sechsgliedriger Heterocyclus charakterisiert werden. 3 wurde durch eine Einkristallröntgenstruktur‐Analyse untersucht. Es liegt im festen Zustand in der all‐trans Form vor.

AbstractHCN (II) treatment of (I) affords the substitution product (III) and the cycloaddition product (IV); the X‐ray structure of the former is determined (space group P21/c, Z=2).

AbstractThe reaction of (I) with AgAsF6 in liquid SO2 yields the title compound (II).

Ein fadenförmiges Polymer mit der Einheit ⃛ AgNCSSCN ⃛ ist das Kation der Titelverbindung 2, die sich aus 1 und AgAsF6 bildet. Die Anionen sind im Kristall ungeordnet. 2 ist der erste Übergangsmetallkomplex mit 1 als Ligand.

AbstractThe 1:2 molar reactions between AgAsFö and dicyanotrisulfane or dicyanotetrasulfane in liquid SO2 in the dark give the chain polymer (I) and the layer polymer (II) without decomposition.