11 B-chemical shifts of diboranes, polyboranes, carboranes and coupling constants 1J(11B1H), 1J(11B11B)
11 B-chemical shifts of diboranes, polyboranes, carboranes and coupling constants 1J(11B1H), 1J(11B11B)
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11 乙硼烷、聚硼烷、碳硼烷的 B 化学位移和耦合常数 1J(11B1H)、1J(11B11B)
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发表时间:
1976
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通讯作者:
B. Wrackmeyer
中科院分区:
文献类型:
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作者:
J. Kroner;B. Wrackmeyer
Linear relationships are observed between calculated charge densities qtotalB or qpB at boron and δ11B for a considerable number of boron compounds. The term p2B(2s)H from the density matrix correlates linearly with 1J(11B1H). The results obtained by CNDO/S calculations were confirmed by ab initio calculations. By correlation of J(11B11B) with p2B(2s)B(2s) reasonable values for J(11B11B) in two centre two electron bonds can be estimated.