Reactions of bis[bis(trimethylsilyl)methyl]germylene and the corresponding stannylene with diazidosilanes

Abstract

The reactions of bis [bis(trimethyIsilyl)

Lewis-Acid-Assisted Methyl Exchange Reactions In Silylated Aminodichloroarsanes

“…1 H NMR (500.13 MHz, CD 2 Cl 2 , 25°C): δ ) 0.40. 13 C{ 1 H} NMR (125.8 MHz, CD 2 Cl 2 , 25°C): δ ) 4.8. MS (CI, positive, 70 eV (isobutane), m/z, >10 %): 71, 91 [NAsH 3 ] + .…”

Tin Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data: Part 1. Monomeric Derivatives

“…The sum increases as the bond distances shorten. For example, the sum of the angles and the bond distances for the SnC 3 species are: 270.6° and 234 pm [25]; 290° and 222 pm [23]; and 359.1° and 212 pm [27], In the SnC 2 N derivative [33], the largest angle sum (359.7°) and the smallest mean bond distance (207.0 pm) for the three coordinated species are found.…”

“…In a yellow triclinic derivative [33] a pyramidal geometry about Sn(ll) is built up from three monodentate ligands with the SnC2N chromophore. The Sn-N bond distance of 190.5(5) pm and the mean Sn-C bond distance of 215.2 (6) pm are both the shortest in these three coordinate derivatives, with mean L-Sn-L bond angles of C-Sn-C = 124.8(2)°, C-Sn-N = 112.7(2)° and 122.3(2)°.…”

New type of reactions of stannylenes with organic azides: Theoretical study

“…Oxidative imination yields stable germa-and stannaimines R 2 M@NSiR 0 3 (M@Ge [1], M@Sn [1b,2]), N-(azidosilyl)germa-and -stannaimine t-Bu 2 Si (N 3 )N@M[CH(SiMe 3 ) 2 ] 2 [3], bis(germaimine) R 2 Si{N@Ge[N(SiMe 3 ) 2 ] 2 } 2 [2b], or products of further transformations of metallaimines, i.e., cyclic derivatives of tetraazagermoles [1a], hexaazadigermadispirododecane [1a], and germanium amide [1g]. Another direction is the insertion to Si-N 3 bond yielding the tetravalent tin compound [(Me 3 Si) 2 N] 3 SnN 3 [4].…”