@article { ISI:000281125800003,
	title = {Structure-function mimicry of oxidized purple acid phosphatase-PAP(ox)-A new functional model},
	journal = {Indian Journal of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical \& Analytical Chemistry},
	volume = {49},
	number = {8},
	year = {2010},
	month = {AUG},
	pages = {1023-1029},
	publisher = {NATL INST SCIENCE COMMUNICATION-NISCAIR},
	address = {DR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIA},
	abstract = {<p>{Electronic structure and spectroscopic properties of the novel diiron active site of oxidized mammalian purple acid phosphatase analogues, Fe-6: [Fe-2 (mu-O) (mu-OAc) (4HNSQ(ox))(2 center dot-)(ONSQ(ox))(2 center dot-)(H2O)(4)] and Fe-7: [Fe-2 (mu-O) (mu-OAc)(ONSQ(ox))(2 center dot-)(OAc) (H2O)(4)] are described. Magnetic susceptibility SQUID data of Fe-6 are best fitted to Heisenberg{\textquoteright}s isotropic spin pair (S = 5/2, 3/2) model using magnetic parameters g = 2 and J = - 36.8 cm(-1) with R factor = 6.4 x 10(-4). The antiferromagnetic exchange establishes Fe(III)-O-Fe(III) dimeric core with Fe(III) site having two radical ligations in the naphthosemiquinone oxime form of lawsone oxime. In the model compound Fe-7 of oxidized purple acid phosphatase, bridged and terminal acetate functions are identified according to their different energies of activations, i.e, similar to 34 and 58 kJ mol(-1) respectively. Also, the reduced naphthoquinone oxime form of ligand is characterized by its energy of activation (similar to 15 kJ mol(-1)) from pyrolytic reaction. Mossbauer parameters</p>},
	keywords = {Antiferromagnetic exchange, Bioinorganic chemistry, DNA cleavage, iron, Nuclease activity, PAP(ox) analogues},
	issn = {0376-4710},
	author = {Waghmode, Shobha A. and Date, Sadgopal K. and Gupta, Vidya S. and Rane, Sandhya Y.}
}
