首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >Crystal engineering using tris-phenols. Cross-linked, pairwise-interwoven two-dimensional nets in the 2 : 1 adduct of 1,1,1-tris(4-hydroxyphenyl)ethane with 1,2-diaminoethane
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Crystal engineering using tris-phenols. Cross-linked, pairwise-interwoven two-dimensional nets in the 2 : 1 adduct of 1,1,1-tris(4-hydroxyphenyl)ethane with 1,2-diaminoethane

机译:使用三酚的晶体工程。 1,1,1-三(4-羟苯基)乙烷与1,2-二氨基乙烷的2:1加合物中的交联成对交织的二维网

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摘要

In 1,1,1-tris(4-hydroxyphenyl)ethane-1, 2-diaminoethane (2/1), [CH3C(C6H4OH)(3)](2).H2NCH2CH2NH2 (1), triclinic, P (1) over bar, with Z = 2, a = 10.9430(12), b = 11.1075(12), c = 15.249(2) Angstrom, alpha = 98.672(15), beta = 96.312(10), gamma = 98.377(13)degrees, the tris-phenol units form continuous two-dimensional nets, built from pseudohexagonal R-4(4)(38) rings, interwoven pairs of which are cross-linked by the Id-diaminoethane units. Each tris-phenol unit acts as a triple donor, forming two O-H...O and one O-H...N hydrogen bonds, and as a double acceptor in two O-H...O hydrogen bonds: the diamine unit, in which the CH2 groups are disordered over two sets of sites with site-occupation factors of 0.740(5) and 0.260(5), respectively, acts as a double acceptor only and the N-H bonds play no role in the hydrogen bonding. The O...O distances in the O-H...O hydrogen bonds are 2.642(2), 2.690(2), 2.810(2) and 2.835(2) Angstrom, and the two independent 0 N distances are both 2.665 (3) Angstrom. Adjacent bilayers are connected into a continuous three-dimensional array by C--H O hydrogen bonds, all having a C...O distance of 3.468 (4) Angstrom. [References: 31]
机译:在1,1,1-三(4-羟苯基)乙烷-1,2-二氨基乙烷(2/1)中,[CH3C(C6H4OH)(3)](2).H2NCH2CH2NH2(1),三斜晶系,P(1) over bar,Z = 2,a = 10.9430(12),b = 11.1075(12),c = 15.249(2)埃,alpha = 98.672(15),beta = 96.312(10),γ= 98.377(13)度,三酚单元形成连续的二维网络,由伪六边形R-4(4)(38)环构建,其交织对通过Id-二氨基乙烷单元交联。每个三酚单元都充当三元供体,形成两个OH ... O和一个OH ... N氢键,并在两个OH ... O氢键中作为双受体:二胺单元,其中CH2基团在两组位点上无序排列,位点占用因子分别为0.740(5)和0.260(5),仅作为双受体,NH键在氢键中不起作用。 OH ... O氢键中的O ... O距离为2.642(2),2.690(2),2.810(2)和2.835(2)埃,两个独立的0 N距离均为2.665(3 )埃。相邻的双层通过C–H O氢键连接成连续的三维阵列,所有C ... O距离均为3.468(4)埃。 [参考:31]

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