Die Kristallstruktur von Tris(trimethylstannyl) acetonitril / Crystal Structure of Tris(trimethylstannyl)- acetonitrile

Abstract

Single crystals of (Me3Sn)3CCN were obtained by the reaction of tris(trimethylstannyl)amine with boiling acetonitrile in the presence of potassium fluoride and trimethylarsane. The compound has been characterized by IR spectroscopy and by a crystal structure determination. Space group P21/n, Z = 4; lattice dimensions at -50 °C: a = 975.4(1), b = 1316.3(2), c = 1485.3(1), β = 98.55(1)°, R = 0.029. (Me3Sn)3CCN forms monomeric molecules with a linear CCN axis (bond angle 178.7(6)°) and bond lengths of CC = 142.1(8) pm and CN = 114.5(8) pm

Syntheses, Structures, and Complexation Studies of Tris(organostannyl)methane Derivatives

“…In this context, it is surprising that, although reported as early as 1933, the reactivity/derivatization of tris(triphenylstannyl)methane, HC(SnPh 3 ) 3 , was not investigated to date. On the other hand, there is one report describing the synthesis and reactivity of tris(trimetylstannyl)methane, HC(SnMe 3 ) 3 , and one report discussing the molecular structure of tris(trimethylstannyl) acetonitrile, (Me 3 Sn) 3 CCN . With this in mind and in continuation of our previous work mentioned above, we have synthesized and structurally characterized the organotin compounds of type H and I (Scheme ).…”

Unprecedented gallium–nitrogen anions: synthesis and characterization of [(Cl3Ga)3N]3− and [(Cl3Ga)2NSnMe3]2−

“…The shift of (Me 3 Sn) 3 CCN is 0.22 ppm in CD 3 CN with J( 1 H-119 Sn) = 55.2 Hz and J( 1 H-117 Sn) = 52.8 Hz. 21 The complex (Me 3 Sn) 3 CCN would be a product of deprotonation of the solvent by 2. Given the recrystallization of the product, and the differences in the spectral features, we assign the shift at 0.28 ppm to that of the protons on the anion.…”