Synthesis and Nonlinear Optical Properties of New Heptapentaenylidene Complexes: Study on the Second Harmonic Generation Efficiencies of Amino-Substituted Group 6 Cumulenylidenes 期刊名称： Organometallics
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作者： Roth, Gerhard,Fischer, Helmut,Meyer-Friedrichn, Timo,Heck,气象科普手抄报
Jürgen,Houbrechts, Stephan,Persoons, André
年份： 1998年
期号： 第8期mydream
车库的英文关键词： carbonylation;alpha-(6-methoxyl-2-naphthyl)ethanol;methyl esters of
Naproxen;PdCl2-CuCl2-PPh3-acid catalyst system
摘要：Reaction of the ynamine MeCCNEtwith the pentatetraenylidene
complexes [(CO)MCCCCC(NMe)] (M = Cr (), W ()) at room temperature affords the和数字有关的成语
new heptapentaenylidene complexes [(CO)MCCCCC(NEt)C(Me)C(NMe)] (M = Cr (),
W ()) in good yield. The spectroscopic data and the X-ray structural analysis of
indicate that the amino-substituted metallacumulenes are best described as
hybrids of a cumulene and veral strongly polarized alkynyl structures. For and
一带一路是什么the related metallacumulenes [(CO)MCCC(NMe)] (M = Cr (), W ()),
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[(CO)CrCCC(NEt)C(H)C(NMe)] (), and ,the molecular first hyperpolarizability β was
determined by hyper-Rayleigh scattering experiments. The inrtion of a Cunit into
a metallacumulene quadruples β, while the inrtion of a Cunit results in only slight
enhancement of the cond harmonic generation respon. Substitution of
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