Organic additives induced coordination complexes of cucurbit[5]uril with strontium(II)

Autor:	Hao Zhang, Wei-Wei Ge, Jing-Xin Liu, Rui-Lian Lin, Jing Xu, Kai Chen
Rok vydání:	2019
Předmět:	Diffraction Strontium Coordination polymer Metal ions in aqueous solution chemistry.chemical_element Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Materials Chemistry Chelation Macrocyclic ligand Physical and Theoretical Chemistry Single crystal Layer (electronics)
Zdroj:	Inorganica Chimica Acta. 487:58-62
ISSN:	0020-1693
DOI:	10.1016/j.ica.2018.11.051
Popis:	Three coordination complexes based on the macrocyclic ligand cucurbit[5]uril (Q[5]) with formulas {[Sr(C30H30N20O10)H2O]Cl2}·11H2O (1), {[Sr(C30H30N20O10)2(C6H5NO3)2(H2O)4]Cl4}·2H2O (2) and {[Sr(C30H30N20O10)Cl2]}·16H2O (3) have been obtained by the self-assembly of Q[5] with strontium(II) in the absence and presence of two different organic compounds, p-hydroxybenzoic acid and p-nitrophenol. Single crystal X-ray diffraction analysis of these three complexes reveal that metal ions Sr2+ can be chelated by Q[5] to form molecular bowl and molecular capsule. Complex 1 is a discrete molecular bowl. Complex 2 induced by p-nitrophenol displays a molecular capsule, which connects with the p-nitrophenol through “out-surface interaction”. Interestingly, complex 3 induced by p-hydroxybenzoic acid is a fascinating coordination polymer with 2D planar layer structure. The comparative study of these three complexes suggest that the organic molecules play important roles in the self-assembly of coordination complexes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9e9bfd7dc464e14b558c1f2cc4f5387 https://doi.org/10.1016/j.ica.2018.11.051 Zobrazit plný text záznamu Full Text from ScienceDirect