Synthesis and characterization of Cl2HSi-O-NMe2

Vojinovic K, Mitzel NW, Foerster T, Rankin DWH (2004)
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 59(11-12): 1505-1511.

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Abstract
O-(Dichlorosilyl)-N,N-dimethylhydroxylamine, Cl2HSiONMe2, was synthesised by the reaction of O-lithio-NN-dimethylhydroxylamine with an excess of trichlorosilane. The compound was characterised by multinuclear NMR spectroscopy (H-1, C-13, N-15, Si-29), gas-phase IR spectroscopy and mass spectrometry. The structure of Cl2HSiONMe2 was determined by gas-phase electron diffraction. It exists as two conformers in the vapour, named anti and gauche after the position of the SiH hydrogen atom relative to the SiON skeleton. The anti:gauche ratio in the vapour was determined to be 40:60. The anti conformer shows only a weak attractive interaction between the geminal donor and acceptor centres N and Si [angle Si-O-N 111.1(20)degrees], whereas these interactions are stronger in the gauche conformer [angle Si-O-N 98.8(12)degrees]. Further structure-determining forces from weak hydrogen bridges of the Si-(ClH)-H-...-C type and van der Waals repulsive forces are also discussed. The experimental results are in reasonable agreement with ab initio calculations at the MP2/6-311++G** level of theory.
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Vojinovic K, Mitzel NW, Foerster T, Rankin DWH. Synthesis and characterization of Cl2HSi-O-NMe2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES. 2004;59(11-12):1505-1511.
Vojinovic, K., Mitzel, N. W., Foerster, T., & Rankin, D. W. H. (2004). Synthesis and characterization of Cl2HSi-O-NMe2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 59(11-12), 1505-1511.
Vojinovic, K., Mitzel, N. W., Foerster, T., and Rankin, D. W. H. (2004). Synthesis and characterization of Cl2HSi-O-NMe2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 59, 1505-1511.
Vojinovic, K., et al., 2004. Synthesis and characterization of Cl2HSi-O-NMe2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 59(11-12), p 1505-1511.
K. Vojinovic, et al., “Synthesis and characterization of Cl2HSi-O-NMe2”, ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, vol. 59, 2004, pp. 1505-1511.
Vojinovic, K., Mitzel, N.W., Foerster, T., Rankin, D.W.H.: Synthesis and characterization of Cl2HSi-O-NMe2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES. 59, 1505-1511 (2004).
Vojinovic, K, Mitzel, Norbert W., Foerster, T, and Rankin, DWH. “Synthesis and characterization of Cl2HSi-O-NMe2”. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 59.11-12 (2004): 1505-1511.
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