Mono-C,O-chelated bromo- and triflatosilanes with an amino acid moiety: salts or covalently bonded complexes?

Synthesis and structure of (O → Si)-chelate fluorosilane, a novel complex of pentacoordinate silicon with N-acetylvaline

“…The same conclusion can be drawn from the correlational analysis of structurally similar bromides and triflates. 10 Such elongation of the O→Si bond might be caused by hydrogen bonding with the solvent (chloroform), which has been reported in literature. 11 Possible effects of hydrogen bonding on the coordination environment of silicon were studied by quantum-chemical calculations.…”

Halogen exchange in complexes of hexacoordinate tin (LnCH2)2SnX2 and (LnCH2)2SnY2 containing lactamomethyl n-membered C,O-chelate ligands LnCH2 (n=5–7; X, Y = Cl, Br, I)

“…An important aspect of our ongoing studies on organic complexes of penta-and hexacoordinate (hypervalent) silicon, germanium and tin with C,O-chelating amidomethyl and lactamomethyl ligands (L n CH 2 , n = lactam ring size, [5][6][7][8] is the effect of the substituent nature on the structure and rigidity of the coordination environment around the central atom. The results of these studies are discussed in reviews [1][2][3][4] and research papers [5][6][7][8][9][10][11][12].…”