abstract
The synthesis and structural characterization of five transition metal complexes with different dimensionality and incorporating residues of 3-amino-1H-1,2,4-triazole-5-carboxylic acid (H(2)atrc) is reported: [Zn(Hatrc)(2)(H2O)] (1), [Mn(Hatrc)(2)(H2O)(2)]center dot 2H(2)O (2), [Fe-2(Hatrc)(4)(OH)(2)]center dot 6H(2)O (3), [Cd(Hatrc)(2)(H2O)](n) (4), and [Mn(atrc)(H2O)](n)center dot nH(2)O (5). These materials could be prepared from solution (1-3), diffusion (4), or hydrothermal reactions (5) with various anions and L:M ratios. Structural details were revealed by single crystal X-ray diffraction. The discrete units composing compounds 1-3, the polymeric 1D chain of 4 and the 2D layer of 5 are further extended into 3D supramolecular architectures through the formation of hydrogen bonds.
keywords
COORDINATION POLYMERS; ORGANIC FRAMEWORKS; SPIN-CROSSOVER; CRYSTAL; CHEMISTRY; LIGANDS; DESIGN
subject category
Chemistry
authors
Liu, B; Fernandes, JA; Tome, JPC; Paz, FAA; Cunha-Silva, L
our authors
Bing Liu
Post-doc Fellowship
Filipe Alexandre Almeida Paz
Principal Researcher
José Alberto Pires Fernandes
Post-doc FellowshipProjects
acknowledgements
Fundacao para a Ciencia e a Tecnologia (FCT, Portugal), the European Union, QREN, FEDER through Programa Operacional Factores de Competitividade (COMPETE), CICECO-Aveiro Institute of Materials (Ref. FCT UID/CTM/50011/2013) and REQUIMTE/LAQV (Ref. FCT UID/QUI/50006/2013) financed by national funds through the FCT/MEC and when applicable co-financed by FEDER under the PT2020 Partnership Agreement.; We wish to thank FCT for funding the R & D projects FCOMP-01-0124-FEDER-041282 (Ref. FCT EXPL/CTM-NAN/0013/2013) and FCOMP-01-0124-FEDER-041445 (Ref. FCT EXPL/QEQ-QUI/0199/2013) and CICECO for specific funding towards the purchase of the single-crystal diffractometer. FCT is also gratefully acknowledged for the Post-Doctoral research grants Nos. SFRH/BPD/63736/2009 and SFRH/BPD/47566/2008 (to J.A.F. and B.L., respectively).