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Moon, Hoi Ri
Functional Inorganic Nanomaterials for Energy Lab (FINE)
Research Interests
  • Inorganic-organic hybrid materials, carbon capture materials, hydrogen storage materials, heterogeneous catalyst

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A redox-active two-dimensional coordination polymer: Preparation of silver and gold nanoparticles and crystal dynamics on guest removal

Cited 158 times inthomson ciCited 156 times inthomson ci
Title
A redox-active two-dimensional coordination polymer: Preparation of silver and gold nanoparticles and crystal dynamics on guest removal
Author
Suh, MPMoon, Hoi RiLee, EYJang, SY
Issue Date
2006-04
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.128, no.14, pp.4710 - 4718
Abstract
A two-dimensional (2D) square-grid coordination polymer, {[Ni(cyclam)] 2[BPTC]}n·2nH2O (1), has been assembled from [Ni(cyclam)](ClO4)2 (cyclam = 1,4,8,11- tetraazacyclotetradecane) and H4BPTC (H4BPTC = 1,1′-biphenyl-2,2′,6,6′-tetracarboxylic acid) in H 2O/MeOH (2.5:1, v/v) in the presence of triethylamine. When solid 1 was immersed in the EtOH solutions of AgNO3 (1-3 × 10 -1 M) and NaAuCl42H2O (3.4 × 10 -2 M), respectively, for 5 min at room temperature, solids including Ag (3.7 ± 0.4 nm, diameter) and Au (2 nm, diameter) nanoparticles were formed by the redox reactions between Ni(II) ions incorporated in 1 and metal ions, as evidenced by HRTEM images, EPR, and XPS spectra. When single-crystal 1 was heated at 180 °C under 10-5 Torr for 24 h, it was transformed to dehydrated compound {[Ni(cyclam)]2[BPTC]}n (2) in the single-crystal-to-single-crystal manner. The X-ray crystal structure of 2 reveals extensive dynamic motions of the molecular components in response to guest removal, involving rotation of the carboxylate and macrocycle, swing of the biphenyl, and bending of the macrocyclic coordination plane toward the carboxylate plane, which reduces the interlayer distance.
URI
https://scholarworks.unist.ac.kr/handle/201301/8466
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33646062897
DOI
10.1021/ja056963l
ISSN
0002-7863
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CHM_Journal Papers
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