THE SYNTHESIS OF MONO-METHYL AND DIMETHYL GALLIUM TETRAAZA MACROCYCLES [MEGA(C22H22N4)] AND [ME2GA(C22H23N4)] AND THE MOLECULAR-STRUCTURE OF THE DIMETHYL GALLIUM DERIVATIVE

被引:8
作者
ALCOCK, NW
BLACKER, NC
WALLBRIDGE, MGH
BARKER, J
机构
[1] UNIV WARWICK,DEPT CHEM,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
[2] ASSOCIATED OCTEL CO LTD,WIRRAL L65 4HR,ENGLAND
关键词
D O I
10.1016/0022-328X(91)80254-H
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of gallium trimethyl with the dibenzo-tetra-aza macrocycle, C22H24N4, results in the formation of the dimethyl gallium-macrocycle, [Me2Ga(C22H23N4)]. A single crystal X-ray diffraction study of the complex shows the gallium to be in a near tetrahedral environment and bonded to two of the four nitrogen atoms, with two nearly equal Ga-N distances. The other two nitrogen atoms form an internal hydrogen bond (N...N 2.675(8) angstrom). The compound loses an additional mole of methane above 200-degrees-C and is converted quantitatively into the monomethyl derivative [MeGa(C22H22N4)].
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页码:C23 / C26
页数:4
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