Coordination Polymers from Calixarene-Like [Cu2(Dicarboxylate)2]4 Building Blocks: Structural Diversity via Atropisomerism
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- 作者：Heba Abourahma ; Graham J. Bodwell ; Jianjiang Lu ; Brian Moulton ; Ian R. Pottie ; Rosa Bailey Walsh ; and Michael J. Zaworotko
- 刊名：Crystal Growth & Design
- 出版年：2003
- 出版时间：July 2003
- 年：2003
- 卷：3
- 期：4
- 页码：513 - 519
- 全文大小：357K
- 年卷期：v.3,no.4(July 2003)
- ISSN：1528-7505
文摘
The self-assembly of [Cu2(dicarboxylate)2]4 nanoscale secondary building units (nSBUs) into coordination polymers can occur in such a way that a range of calix-like atropisomers can exist. Eight compounds have beenprepared and crystallographically characterized via reaction between Cu(NO3)2 and angular dicarboxylate ligands:{[Cu2(bdc)2(py)2]4
guest}n (1a), {[Cu2(bdc)2(py)2]44nitrobenzene2EtOH}n (1b), {[Cu2(bdc)2(4-pic)2]44o-dichlorobenzene}n(2), {[Cu2(5-OEt-bdc)2(py)2]48H2O}n (3), {[Cu2(5-OPr-bdc)2(py)2]4guest }n (4), {[Cu2(pdc)2(py)2]44MeOH}n (5), {[Cu2(pdc)2(4-pic)2]44H2O}n (6), and {[Cu2(tdc)2(MeOH)2]44naphthalene8MeOH}n (7). The following atropisomers, allof which have also been observed in calixarenes, were observed: (a) cone (1a, 3, and 4); (b) partial cone (1b); (c)1,2-alternate (2 and 5-7); and (d) 1,3-alternate (1a, 3, and 4). The similarities and differences between the crystalstructures of 1-7 are detailed herein.
guest}n (1a), {[Cu2(bdc)2(py)2]44nitrobenzene2EtOH}n (1b), {[Cu2(bdc)2(4-pic)2]44o-dichlorobenzene}n(2), {[Cu2(5-OEt-bdc)2(py)2]48H2O}n (3), {[Cu2(5-OPr-bdc)2(py)2]4guest }n (4), {[Cu2(pdc)2(py)2]44MeOH}n (5), {[Cu2(pdc)2(4-pic)2]44H2O}n (6), and {[Cu2(tdc)2(MeOH)2]44naphthalene8MeOH}n (7). The following atropisomers, allof which have also been observed in calixarenes, were observed: (a) cone (1a, 3, and 4); (b) partial cone (1b); (c)1,2-alternate (2 and 5-7); and (d) 1,3-alternate (1a, 3, and 4). The similarities and differences between the crystalstructures of 1-7 are detailed herein.