Journal
CRYSTAL GROWTH & DESIGN
Volume 14, Issue 7, Pages 3276-3285Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg500162x
Keywords
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Funding
- CSIR, Government of India [01 (2743)/13/EMR-II]
- Spanish MINECO [CTQ2012-32247, RYC-2010-05821]
- Spanish Ministerio de Educaciony Ciencia [CTQ-2010-15364, CSD2007-00010]
- GeneralitatValenciana (PROMETEO Program)
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Three new 1,4-phenylenediacrylate bridged Mn(II) and Co(II) complexes of molecular formulas {[Mn-2(ppda)(phen)(4)(H2O)(2)](ppda)(2)(H2O)} (1), {[Co(ppda)(dpyo)(H2O)(3)]center dot 4(H2O)}(n) (2), and {[Co(ppda)(bpe)]center dot(0.5H(2)O)}(n) (3) [ppda = 1,4-phenylenediacrylate; phen = 1,10-phenanthroline; dpyo = 4,4'-dipyridyl N,N'-dioxide; bpe = 1,2-bis(4-pyridyl)ethane] have been synthesized and characterized by elemental analysis, IR spectra, single-crystal X-ray diffraction studies, and low-temperature magnetic measurements. The structural determination reveals that complex 1 is a discrete dinuclear species, 2 is a ID polymeric chain, while 3 is a three-fold interpenetrated alpha-polonium network. Hydrogen-bonding interactions, formed by coordinated and/or lattice water molecules with ppda oxygen and pi-pi stacking interactions of aromatic rings, lead to a 3D supramolecular architecture in both complexes 1 and 2. Low-temperature magnetic study shows antiferromagnetic coupling in all the complexes. In addition, their electronic and fluorescent spectral properties have been investigated.
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