Hydridotris(3,5-dimethylpyrazolyl)borate tungsten alkyne complexes for nonlinear optics

被引:6
作者
OReilly, SA
White, PS
Templeton, JL
机构
[1] Kenan Laboratories, University of North Carolina, Chapel Hill
关键词
D O I
10.1021/cm950255p
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Deprotonation of the propargyl site of racemic or enantiomerically pure Tp'(CO)IW(C6H5C=CCH3) (Tp'= hydridotris(3,5-dimethylpyrazolyl)borate yields an eta(2)-allenyl anion which has been reacted with a series of aldehydes and ketones possessing electron-donating substituents. Elimination under either acidic or basic conditions generates chiral trans conjugated enynes. Characterization has been accomplished by NMR, IR, UV-vis, and elemental analysis. Additionally, X-ray diffraction has been used to structurally characterize racemic Tp'(CO)IW(C6H5C=CCH=C(CH3)C5H4FeC5H5) The structural analysis reveals a centrosymmetric space group (<P(1)over bar>); cell dimensions of a = 10.690(5) Angstrom, b = 13.360(7) Angstrom, c = 15.392(7) Angstrom, alpha = 92.57(6)degrees, beta = 101.70(5)degrees, and gamma = 100.97(4)degrees; Z = 2 molecules/unit cell; and R(w) = 4.7% and R = 3.9%. Second harmonic generation of the enynes has been measured by the Kurtz powder technique.
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页码:93 / 99
页数:7
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