作者:Jeffrey C. Bryan、Benjamin P. Hay、Richard A. Sachleben、Cassandra T. Eagle、Cungen Zhang、Peter V. Bonnesen
DOI:10.1023/a:1024269812003
日期:——
The podand, bis(2-methoxyphenoxy) m-xylene (1), was designed and synthesized as a potential host for the cesium ion. Its structure was determined by single crystal X-ray diffraction. It crystallizes in P2(1)/c with cell dimensions: a = 8. 5723(7) Angstrom, b = 8.3931(14) Angstrom, c = 25.2879(26) Angstrom, beta = 96.224(9)degrees, and V = 1808.7(4) Angstrom(3). A crown derivative, tribenzo-21-crown-6 ( 2), was also prepared and structurally characterized. It also crystallizes in P2(1)/c with cell dimensions: a = 15.5825(13) Angstrom, b = 15.8648(16) Angstrom, c = 8.8266(7) Angstrom, beta = 95.247(6) degrees, and V = 2172.9(3) Angstrom(3). The structures exhibit hydrogen bonding, and are evaluated in terms of complementarity and preorganization for cesium binding.