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Title:Crystal habit modification of Cu(II) isonicotinate-N-oxide complexes using gel phase crystallisation
Authors:Ghosh, Dipankar (Author)
Ferfolja, Katja (Author)
Drabavičius, Žygimantas (Author)
Steed, Jonathan (Author)
Damodaran, Krishna Kumar (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:We report the crystallisation of three forms of copper(II) isonicotinate-N-oxide complex and their phase interconversion via solvent-mediated crystal to crystal transformation. The different forms of copper complex have been isolated and characterised by single crystal X-ray diffraction. Gel phase crystallisation performed in hydrogels, low molecular weight gels and gels of tailored gelator showed crystal habit modification. Crystallisation in aqueous ethanol resulted in concomitant formation of blue (form-I) and green (form-II/IV) crystals while use of low molecular weight gel results in selective crystallization of the blue form-I under identical conditions. Comparison of gel phase and the solution state crystallisation in various solvent compositions reveals that the blue form-I is the thermodynamically stable form under ambient conditions.
Keywords:copper(II) complex, gel phase crystallisation, crystal habit modification, isonicotinate-N-oxide, X-ray diffraction
Year of publishing:20
Number of pages:9
Numbering:2018
COBISS_ID:5266427 Link is opened in a new window
URN:URN:SI:UNG:REP:POFKUQKU
DOI:10.1039/C8NJ05036H Link is opened in a new window
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Record is a part of a journal

Title:New Journal of Chemistry
Shortened title:New J. Chem.
Year of publishing:20

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