Tetraaza Analogues of Lithium and Sodium Alums: Synthesis and X-ray Structures of the Single Strand Polymer [Li(THF)<sub>2</sub>{Al[SO<sub>2</sub>(N<sup>t</sup>Bu)<sub>2</sub>]<sub>2</sub>}]<sub>∞</sub> and the Contact Ion Pairs [Na(15-crown-5)][Al{SO<sub>2</sub>(N<sup>t</sup>Bu)<sub>2</sub>}<sub>2</sub>] and {[Na(15-crown-5)][O<sub>2</sub>S(<i>μ</i>-NBn)<sub>2</sub>Al(<i>μ</i>-NBnSO<sub>2</sub>NBn)]}<sub>2</sub>
作者:Pierre Blais、Justin K. Brask、Tristram Chivers、Gabriele Schatte
DOI:10.1021/ic0006549
日期:2001.1.1
a polymeric strand. In the sodium salt 2 the complex anion is O,O' chelated to Na+, which is further encapsulated by a 15-crown-5 ligand to give a monomeric ion-pair complex. By contrast, the benzyl derivative 3 forms a dimer in which the terminal [SO2(NBn)2]2- ligands are (N,N'),(O,O') bis-chelated to Al3+ and Na+, respectively, and the bridging ligands adopt a novel N,O-chelate, N'-monodentate bonding
碱金属铝氢化物MAlH4(M = Li,Na)与N,N'-双-(叔丁基)磺酰胺或N,N'-双-(苄基)磺酰胺在THF中反应生成络合物离子(Al [ SO 2(NR)2] 2)-(R = tBu,Bn)。[Li(THF)2(Al [SO2(NtBu)2] 2)]无穷大(1),[Na(15-crown-5)] [Al(SO2(NtBu)2)2]的X射线结构,(2)和([Na(15-crown-5)] [O 2 S(mu-NBn)2 Al(mu-NBnSO 2 NBn)] 2(3.3THF)被报道。两个重氮硫酸盐配体[SO2(NtBu)2] 2-在1和2中均被N,N'螯合到Al3 +。在锂衍生物1中,螺环(Al [SO2(NtBu)2] 2)2-阴离子通过双溶剂化的阳离子Li(THF)2+生成聚合物链。在钠盐2中,络合物阴离子被O,O'螯合为Na +,然后被15冠-5配体进一步包封,得到单体离子