Anion-π interaction stitching 2-D layers formed by self-assembly of cations of a mononuclear copper(II) complex

Synthesis, crystal structure and magnetism of [Cu(OAc)(2,2′-dypam)2](ClO4) [HOAc = acetic acid, 2,2′-dypam = 2,2′-dipyridylamine]

Somnath Ray Choudhury, Chih Yuan Chen, Saikat Seth, Tanusree Kar, Hon Man Lee, Enrique Colacio, Subrata Mukhopadhyay

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A mononuclear Cu(II) compound [Cu(OAc)(2,2′-dypam)2](ClO4) (1), where HOAc and 2,2′-dypam are, respectively, acetic acid and 2,2′-dipyridylamine, has been synthesized and characterized by single crystal X-ray diffraction analysis. The cations of 1 link by N-H · O hydrogen bonds to form infinite 1-D zig-zag chains, which run along the b axis. Two adjacent chains along the c axis are joined by C-H · O hydrogen bonds to form a 2-D network. These 2-D layers are further bridged by perchlorate anions via weak anion-π interactions that act as a supramolecular glue to build the 3-D supramolecular network. Variable temperature (1.7-300 K) magnetic measurements revealed very weak intermolecular antiferromagnetic interactions at temperatures below 20 K between Cu(II) ions mediated by hydrogen bonds, C-H · π and π · π interactions. At temperatures ≥20 K, susceptibility data corresponds to isolated Cu(II) ions, indicating that the weak interactions affect the magnetism of 1 only at very low temperatures.

Original languageEnglish
Pages (from-to)540-551
Number of pages12
JournalJournal of Coordination Chemistry
Volume62
Issue number4
DOIs
Publication statusPublished - 2009 Jan 1

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D region
Magnetism
acetic acid
Acetic acid
Acetic Acid
Self assembly
Anions
Cations
self assembly
Copper
Negative ions
Crystal structure
Positive ions
hydrogen bonds
anions
cations
copper
Hydrogen bonds
crystal structure
synthesis

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

@article{83a5000a2a8b416aac345aacc9187299,
title = "Anion-π interaction stitching 2-D layers formed by self-assembly of cations of a mononuclear copper(II) complex: Synthesis, crystal structure and magnetism of [Cu(OAc)(2,2′-dypam)2](ClO4) [HOAc = acetic acid, 2,2′-dypam = 2,2′-dipyridylamine]",
abstract = "A mononuclear Cu(II) compound [Cu(OAc)(2,2′-dypam)2](ClO4) (1), where HOAc and 2,2′-dypam are, respectively, acetic acid and 2,2′-dipyridylamine, has been synthesized and characterized by single crystal X-ray diffraction analysis. The cations of 1 link by N-H · O hydrogen bonds to form infinite 1-D zig-zag chains, which run along the b axis. Two adjacent chains along the c axis are joined by C-H · O hydrogen bonds to form a 2-D network. These 2-D layers are further bridged by perchlorate anions via weak anion-π interactions that act as a supramolecular glue to build the 3-D supramolecular network. Variable temperature (1.7-300 K) magnetic measurements revealed very weak intermolecular antiferromagnetic interactions at temperatures below 20 K between Cu(II) ions mediated by hydrogen bonds, C-H · π and π · π interactions. At temperatures ≥20 K, susceptibility data corresponds to isolated Cu(II) ions, indicating that the weak interactions affect the magnetism of 1 only at very low temperatures.",
author = "Choudhury, {Somnath Ray} and Chen, {Chih Yuan} and Saikat Seth and Tanusree Kar and Lee, {Hon Man} and Enrique Colacio and Subrata Mukhopadhyay",
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Anion-π interaction stitching 2-D layers formed by self-assembly of cations of a mononuclear copper(II) complex : Synthesis, crystal structure and magnetism of [Cu(OAc)(2,2′-dypam)2](ClO4) [HOAc = acetic acid, 2,2′-dypam = 2,2′-dipyridylamine]. / Choudhury, Somnath Ray; Chen, Chih Yuan; Seth, Saikat; Kar, Tanusree; Lee, Hon Man; Colacio, Enrique; Mukhopadhyay, Subrata.

In: Journal of Coordination Chemistry, Vol. 62, No. 4, 01.01.2009, p. 540-551.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Anion-π interaction stitching 2-D layers formed by self-assembly of cations of a mononuclear copper(II) complex

T2 - Synthesis, crystal structure and magnetism of [Cu(OAc)(2,2′-dypam)2](ClO4) [HOAc = acetic acid, 2,2′-dypam = 2,2′-dipyridylamine]

AU - Choudhury, Somnath Ray

AU - Chen, Chih Yuan

AU - Seth, Saikat

AU - Kar, Tanusree

AU - Lee, Hon Man

AU - Colacio, Enrique

AU - Mukhopadhyay, Subrata

PY - 2009/1/1

Y1 - 2009/1/1

N2 - A mononuclear Cu(II) compound [Cu(OAc)(2,2′-dypam)2](ClO4) (1), where HOAc and 2,2′-dypam are, respectively, acetic acid and 2,2′-dipyridylamine, has been synthesized and characterized by single crystal X-ray diffraction analysis. The cations of 1 link by N-H · O hydrogen bonds to form infinite 1-D zig-zag chains, which run along the b axis. Two adjacent chains along the c axis are joined by C-H · O hydrogen bonds to form a 2-D network. These 2-D layers are further bridged by perchlorate anions via weak anion-π interactions that act as a supramolecular glue to build the 3-D supramolecular network. Variable temperature (1.7-300 K) magnetic measurements revealed very weak intermolecular antiferromagnetic interactions at temperatures below 20 K between Cu(II) ions mediated by hydrogen bonds, C-H · π and π · π interactions. At temperatures ≥20 K, susceptibility data corresponds to isolated Cu(II) ions, indicating that the weak interactions affect the magnetism of 1 only at very low temperatures.

AB - A mononuclear Cu(II) compound [Cu(OAc)(2,2′-dypam)2](ClO4) (1), where HOAc and 2,2′-dypam are, respectively, acetic acid and 2,2′-dipyridylamine, has been synthesized and characterized by single crystal X-ray diffraction analysis. The cations of 1 link by N-H · O hydrogen bonds to form infinite 1-D zig-zag chains, which run along the b axis. Two adjacent chains along the c axis are joined by C-H · O hydrogen bonds to form a 2-D network. These 2-D layers are further bridged by perchlorate anions via weak anion-π interactions that act as a supramolecular glue to build the 3-D supramolecular network. Variable temperature (1.7-300 K) magnetic measurements revealed very weak intermolecular antiferromagnetic interactions at temperatures below 20 K between Cu(II) ions mediated by hydrogen bonds, C-H · π and π · π interactions. At temperatures ≥20 K, susceptibility data corresponds to isolated Cu(II) ions, indicating that the weak interactions affect the magnetism of 1 only at very low temperatures.

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U2 - 10.1080/00958970802308359

DO - 10.1080/00958970802308359

M3 - Article

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SP - 540

EP - 551

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

SN - 0095-8972

IS - 4

ER -