Synthesis and structures of the heavier alkali metal alkyls; the X-ray structures of [Na(µ-R)]∞ and [Rb(µ-R)(pmdeta)]2[R = CH(SiMe3)2, pmdeta =(Me2NCH2CH2)2NMe]
Synthesis and structures of the heavier alkali metal alkyls; the X-ray structures of [Na(µ-R)]∞ and [Rb(µ-R)(pmdeta)]2[R = CH(SiMe3)2, pmdeta =(Me2NCH2CH2)2NMe]
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重碱金属烷基化合物的合成和结构；[Na(μ-R)]∞和[Rb(μ-R)(pmdeta)]2[R = CH(SiMe3)2, pmdeta =( Me2NCH2CH2)2NMe]
DOI：
10.1039/c39930001386
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Tian Shun
中科院分区：
文献类型：
--
作者：
P. Hitchcock;M. Lappert;W. Leung;Liu Diansheng;Tian Shun
用等摩尔比的NaOBut、KOBut+pmdeta和Rb(OC6H2But2-2，6-Me-4)+pmdeta与LiR反应合成了结晶的、可溶于正己烷的金属烷基化合物[Na(µ-R)∞1，[KR(Pmedta)]m和[Rb(µ-R)(Pmdeta)]22[R=CH(SiMe3)2，pmdeta=(Me2NCH2CH2)2NMe]；1具有与(Na-C)av 2.555(10)A、(Na-C-H)av 76(3)和(Na-C-Na)av 152(1)°近似正交的交替阳离子和平面R-阴离子链，而2由离散二聚体、(Rb-C)av 3.412(9)A、Rb-C-Rb75.3(2)和C-Rb-C 152(2)°组成。
The crystalline, hexane-soluble metal alkyls [Na(µ-R)∞1, [KR(pmedta)]m, and [Rb(µ-R)(pmdeta)]22[R = CH(SiMe3)2, pmdeta =(Me2NCH2CH2)2NMe] have been prepared from LiR with equimolar portions of NaOBut, KOBut+ pmdeta, and Rb(OC6H2But2-2,6-Me-4)+ pmdeta, respectively; 1has chains of alternating cations and planar R– anions which are approximately orthogonal to the chains, (Na–C)av 2.555(10)A, (Na–C–H)av 76(3) and (Na–C–Na)av 152(1)°, whereas 2 consists of discrete dimers, (Rb–C)av 3.412(9)A, Rb–C–Rb 75.3(2) and C–Rb–C 104.7(2)°.