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Title: Synthesis and structure of a three-dimensional lanthanum(III) coordination polymer with mellitate, (La{sub 2}[C{sub 6}(COO){sub 6}](H{sub 2}O){sub 9}){center_dot}2H{sub 2}O

Abstract

The crystal and molecular structure of a lanthanum(III) mellitate, La{sub 2}C{sub 12}H{sub 22}O{sub 23}, has been determined by X-ray structural analysis using a combination of direct and heavy atom methods. The complex crystallizes in the monoclinic space group P2{sub 1}/n with unit-cell dimensions of a = 6.723(4), b = 11.368(5), c = 29.813(4) {angstrom} and {beta} = 95.851(3){degrees}. Block-diagonal least-squares refinement using automated diffractometer-collected data resulted in R = 2.5 and R{sub W} = 3.4. The crystal structure consists of layers perpendicular to the a axis. Each layer is formed by an extended network of lanthanum ions coordinated with mellitate anions and water molecules, and linked through a complex three-dimensional hydrogen-bonding network. Among the six carboxylate groups of the mellitate anion, five form coordination bonds to six lanthanum atoms. The two independent lanthanum ions are both nine-coordinate and the configuration around lanthanum is a tricapped trigonal prism with the La-O bond distances ranging from 2.457 {angstrom} to 2.704 {angstrom}.

Authors:
; ;  [1]
  1. Kinki Univ., Osaka (Japan) [and others
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
273997
Resource Type:
Journal Article
Journal Name:
Journal of Coordination Chemistry
Additional Journal Information:
Journal Volume: 37; Journal Issue: 1-4; Other Information: PBD: Feb 1996
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; LANTHANUM COMPOUNDS; MOLECULAR STRUCTURE; CHEMICAL PREPARATION; MONOCLINIC LATTICES; CRYSTAL STRUCTURE; MELLITIC ACID; X-RAY DIFFRACTION; POLYMERS

Citation Formats

Wu, Ping Liang, Munakata, Megumu, and Yamamoto, Mikiko. Synthesis and structure of a three-dimensional lanthanum(III) coordination polymer with mellitate, (La{sub 2}[C{sub 6}(COO){sub 6}](H{sub 2}O){sub 9}){center_dot}2H{sub 2}O. United States: N. p., 1996. Web. doi:10.1080/00958979608023566.
Wu, Ping Liang, Munakata, Megumu, & Yamamoto, Mikiko. Synthesis and structure of a three-dimensional lanthanum(III) coordination polymer with mellitate, (La{sub 2}[C{sub 6}(COO){sub 6}](H{sub 2}O){sub 9}){center_dot}2H{sub 2}O. United States. doi:10.1080/00958979608023566.
Wu, Ping Liang, Munakata, Megumu, and Yamamoto, Mikiko. Thu . "Synthesis and structure of a three-dimensional lanthanum(III) coordination polymer with mellitate, (La{sub 2}[C{sub 6}(COO){sub 6}](H{sub 2}O){sub 9}){center_dot}2H{sub 2}O". United States. doi:10.1080/00958979608023566.
@article{osti_273997,
title = {Synthesis and structure of a three-dimensional lanthanum(III) coordination polymer with mellitate, (La{sub 2}[C{sub 6}(COO){sub 6}](H{sub 2}O){sub 9}){center_dot}2H{sub 2}O},
author = {Wu, Ping Liang and Munakata, Megumu and Yamamoto, Mikiko},
abstractNote = {The crystal and molecular structure of a lanthanum(III) mellitate, La{sub 2}C{sub 12}H{sub 22}O{sub 23}, has been determined by X-ray structural analysis using a combination of direct and heavy atom methods. The complex crystallizes in the monoclinic space group P2{sub 1}/n with unit-cell dimensions of a = 6.723(4), b = 11.368(5), c = 29.813(4) {angstrom} and {beta} = 95.851(3){degrees}. Block-diagonal least-squares refinement using automated diffractometer-collected data resulted in R = 2.5 and R{sub W} = 3.4. The crystal structure consists of layers perpendicular to the a axis. Each layer is formed by an extended network of lanthanum ions coordinated with mellitate anions and water molecules, and linked through a complex three-dimensional hydrogen-bonding network. Among the six carboxylate groups of the mellitate anion, five form coordination bonds to six lanthanum atoms. The two independent lanthanum ions are both nine-coordinate and the configuration around lanthanum is a tricapped trigonal prism with the La-O bond distances ranging from 2.457 {angstrom} to 2.704 {angstrom}.},
doi = {10.1080/00958979608023566},
journal = {Journal of Coordination Chemistry},
number = 1-4,
volume = 37,
place = {United States},
year = {1996},
month = {2}
}