beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane

Mitzel NW, Losehand U (1998)
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (12): 2023-2026.

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The compounds Cl2Si(ONMe2)(2) and Cl2Ge(ONMe2)(2) were prepared by the reaction of the appropriate tetrachlorides with N,N-dimethylhydroxylamine in the presence of 2,6-lutidine as an auxiliary base. The compounds were obtained as crystalline solids and characterised by elemental analysis, IR and NMR spectroscopy (nuclei H-1, C-13, N-15, O-17, and Si-29). Their molecular structures were determined by single-crystal X-ray diffraction. The compounds are isostructural and both show the presence of weak secondary bonds between the nitrogen and silicon centres (beta-donor bonds), as is indicated by the small angles SiON [1.02.8(1) and 103.7(1)degrees] and GeON [102.0(1)degrees], and the distances Si...N (2.438 and 2.450 Angstrom) and Ge...N (2.519 and 2.520 Angstrom). The conformation is anti-gauche in both compounds (one O-Si-O-N torsion angle being about 180 degrees, the other 60 degrees), but the strength of the beta-donor interaction is not significantly affected by the different antisubstituents at the nitrogen centres, although such behaviour was expected from earlier studies carried out on ClH2SiONMe2. The beta-donor interactions are also weaker than those found in ClH2SiONMe2.
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Mitzel NW, Losehand U. beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. 1998;(12):2023-2026.
Mitzel, N. W., & Losehand, U. (1998). beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(12), 2023-2026.
Mitzel, N. W., and Losehand, U. (1998). beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2023-2026.
Mitzel, N.W., & Losehand, U., 1998. beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, (12), p 2023-2026.
N.W. Mitzel and U. Losehand, “beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane”, EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 1998, pp. 2023-2026.
Mitzel, N.W., Losehand, U.: beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. 2023-2026 (1998).
Mitzel, Norbert W., and Losehand, U. “beta-donor interactions as secondary bonds in dichlorobis(dimethylaminoxy)silane and -germane”. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 12 (1998): 2023-2026.
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