作者: Armand Blaschette , Thomas Hamann , Axel Michalides , Peter G. Jones
DOI: 10.1016/0022-328X(93)83316-N
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摘要: Abstract The new compounds Me 3 GeN(SO 2 Me) ( ) and PbN(SO 4 were prepared from the corresponding chlorides ECl AgN(SO in MeCN solution. crystallographic data at −95°C are for : triclinic, space group P 1 , a 771.7(2), b 1204.1(4), c 1388.4(5) pm, α 66.75(3), β 84.12(3), γ 74.15(2)°, V 1.1401 nm Z = 4; monoclinic, / 751.1(3), 1065.5(4), 1493.9(5) 100.99(3)°, 1.1738 4. crystal structure of consists two crystallographically independent, monomeric molecules with tetrahedral Ge atoms trigonal- planar N (average angle values: CGeC 112.7, CGeN 106.0, GeNS 121.1, SNS 117.3 °). most striking features molecular extremely long GeN bond distances 198.2(2) 198.5(2) which equal to uncorrected sum covalent single radii. In units linked by an intermolecular PbO interaction (265.3(6) pm) form infinite parallel chains. Pb atom has distorted trigonal-bipyramidal arrangement (NPbO 169.3; average CPbC 119.2, CPbN 95.5, CPbO 84.8°), is trigonal-planar (SNS mean PbNS 119.8°). PbN distance 248.4(6) i.e. 30 pm longer than radii, suggesting mainly ionic character. both structures secondary intramolecular 1,4-interactions ⋯ O 295.8 328 respectively, observed.