Synthesis and Characterization of Organoboryl Germanium(Ⅱ)Oxides Containing Ge-O-B and Ge-O-B-O-Ge Cores  

作　　者：ZHANG De-Xiang LI Yao PENG Lan-Xin LI Hai-Pu YANG Ying 张德祥;李瑶;彭澜欣;李海普;杨鹰(School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety,Changsha 410083,China)

机构地区：[1]School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China [2]Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety,Changsha 410083,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第6期811-820,686,共11页结构化学（英文）

基　　金：the National Natural Science Foundation of China(21771194)。

摘　　要：Organoboryl germanium(Ⅱ)oxides were synthesized from the 1,4-addition reaction of L′Ge(L′=HC[C(CH2)N(Ar)]C(Me)N(Ar),Ar=2,6-iPr2C6H3)with selected monosubstituted arylboronic acids RB(OH)2(R=2,6-Me2C6H3,2,4,6-Me3C6H2,1-Naph)at the molar ratios of 1:1 and 2:1.The mononuclear products RB(OH)OGeL(L=CH[C(Me)N(Ar)]2,Ar=2,6-iPr2C6H3;R=2,6-Me2C6H3(1),2,4,6-Me3C6H2(2),1-Naph(3))containing the Ge–O–B core were obtained smoothly through the 1:1 reaction.However,the reaction of L′Ge with 2,6-Me2C6H3B(OH)2 in a 2:1 ratio gave only the mononuclear product(1)instead of the expected binuclear one.What’s more,a new borate compound[(2,6-Me2C6H3)4B5O6]-[H:C]+(4)(:C=C[N(iPr)C(Me)]2)was concomitantly formed when the in situ prepared L′Ge was used as the precursor.In contrast,the use of 2,4,6-Me3C6H2B(OH)2 or 1-NaphB(OH)2 as the organoboryl source in the similar reaction led to the formation and isolation of the binuclear products RB(OGeL)2(R=2,4,6-Me3C6H2(5),1-Naph(6))containing the Ge–O–B–O–Ge core in a straight way.Compounds 1~6 were determined by single-crystal X-ray diffraction analysis.

关 键 词：organic boronic acid GERMYLENE synthesis crystal structure 

分 类 号：O641.4[理学—物理化学]