Polymers 2013, 5(2), 418-430; doi:10.3390/polym5020418
Article

One-Dimensional Coordination Polymers of Lanthanide Cations to Cucurbit[7]uril Built Using a Range of Tetrachloride Transition-Metal Dianion Structure Inducers

1email, 2email, 1email, 1email, 3email, 1email, 1email, 1email, 1,* email and 4,* email
Received: 18 March 2013; in revised form: 30 April 2013 / Accepted: 3 May 2013 / Published: 16 May 2013
(This article belongs to the Special Issue Supramolecular Chemistry and Self-Assembly)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A number of linear coordination polymers have been assembled from lanthanide cations (Ln3+) and cucurbit[7]uril (Q[7]) in the presence of [CuCl4]2−or [CoCl4]2− anions acting as inorganic structure inducers in HCl solution. X-ray diffraction analysis has revealed that they form three groups of isomorphous structures. Generally, the complexes of Q[7] with light lanthanide cations (those with atomic number below that of neodymium (Nd3+)) are in one group. The other two groups, in which the lanthanide cation has atomic number greater than that of europium (Eu3+), seem to follow no obvious rule. For example, the complexes of Q[7] with Eu3+ and Gd3+cations are in the second group in the presence of [CuCl4]2− anions, while they are in the third group in the presence of [CoCl4]2− anions. However, whatever group a given complex belongs to, they all show a common honeycomb-patterned supramolecular assembly, in which [CuCl4]2−or [CoCl4]2− anions form a honeycomb structure. The Ln3+ cations then coordinate to neighboring Q[7] molecules to form 1D coordination polymers that are inserted into the channels of the honeycomb framework, such that each individual coordination polymer is surrounded by [CuCl4]2−or [CoCl4]2− anions.
Keywords: cucurbit[7]uril; lanthanide cation; inorganic inducers; 1D coordination polymers
PDF Full-text Download PDF Full-Text [4333 KB, uploaded 16 May 2013 14:33 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Liang, L.-L.; Zhao, Y.; Chen, K.; Xiao, X.; Clegg, J.K.; Zhang, Y.-Q.; Tao, Z.; Xue, S.-F.; Zhu, Q.-J.; Wei, G. One-Dimensional Coordination Polymers of Lanthanide Cations to Cucurbit[7]uril Built Using a Range of Tetrachloride Transition-Metal Dianion Structure Inducers. Polymers 2013, 5, 418-430.

AMA Style

Liang L-L, Zhao Y, Chen K, Xiao X, Clegg JK, Zhang Y-Q, Tao Z, Xue S-F, Zhu Q-J, Wei G. One-Dimensional Coordination Polymers of Lanthanide Cations to Cucurbit[7]uril Built Using a Range of Tetrachloride Transition-Metal Dianion Structure Inducers. Polymers. 2013; 5(2):418-430.

Chicago/Turabian Style

Liang, Li-Li; Zhao, Yi; Chen, Kai; Xiao, Xin; Clegg, Jack K.; Zhang, Yun-Qian; Tao, Zhu; Xue, Sai-Feng; Zhu, Qian-Jiang; Wei, Gang. 2013. "One-Dimensional Coordination Polymers of Lanthanide Cations to Cucurbit[7]uril Built Using a Range of Tetrachloride Transition-Metal Dianion Structure Inducers." Polymers 5, no. 2: 418-430.


Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert