NDLI: Self-assembly and characterization of copper 3,4-pyridinedicarboxylate complexes based on a variety of polynuclear hydroxo clusters

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zheng, Xiang-jun Yuan, Da-qiang Yan, Shao-hua Jin, Lin-pei Li, Li-cun
Description	Author Affiliation: Yan SH ( College of Chemistry, Beijing Normal University, Beijing100875, PR. China. xjzheng@bnu.edu.cn)
Abstract	Self-assembly of copper(II) ion, 3,4-pyridinedicarboxylate (PDC), and 1,10-phenanthroline (phen) under basic conditions at 100 °C affords four PDC linked copper(II) complexes, $[Cu_{4}(μ_{2}-OH)_{3}(μ_{3}-OH)(PDC)(phen)_{4}]_{n}·n(PDC)·11.5nH_{2}O$ (1), $[Cu_{4}(μ_{2}-OH)_{2}(μ_{3}-OH)_{2}(PDC)(phen)_{4}]_{n}·n(PDC)·$ $11.5nH_{2}O$ (2), $[Cu_{8}(μ_{2}-OH)_{2}(μ_{3}-OH)_{6}(PDC)_{2}(phen)_{8}]·2(PDC)·23H_{2}O$ (3), and $[Cu_{3.5}(μ_{2}-OH)_{3}$ $(PDC)_{2}(phen)]_{n}$ (4). 1–4 are copper hydroxo complexes, and 1, 2 and 3 co-crystallized from the one-pot reaction. X-ray single crystal diffraction analyses indicate that complexes 1 and 2 are linkage isomers and contain tetranuclear copper cluster cores with different geometry, and that PDC links the cluster core to form a one-dimensional chain. Complex 3 is a discrete step-like octanuclear copper hydroxo cluster complex. The involvement of hydroxo and phen in the coordination makes some coordination sites of PDC idle, which leads to rich hydrogen bonds and π–π interactions in complexes 1, 2 and 3. Complex 4 contains two types of copper hydroxo cluster cores: chair-like tetranuclear and linear trinuclear units, and the cluster cores are linked by PDC to a double-layer metal–organic framework. Magnetic properties of 1, 3 and 4 were investigated. The results reveal that complexes 3 and 4 exhibit strong antiferromagnetic interactions whereas ferromagnetic coupling is predominant for complex 1. The magnetic properties are analyzed in connection with their structures.
ISSN	14779226
Issue Number	8
Volume Number	40
e-ISSN	13645447
Journal	Dalton Trans.
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2011-02-28
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Copper Chemistry Organometallic Compounds Picolinic Acids Crystallography, X-Ray Magnetics Models, Molecular Phenanthrolines Temperature Journal Article Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in