semipolar bond

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semipolar bond

(ˌsɛmɪˈpəʊlə)
n
(Chemistry) chem another name for coordinate bond
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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It has been commonly recognized that an organic inhibitor usually promotes formation of a chelate on a metal surface, by transferring p and/or p-electrons from the organic compounds to the metal and forming a coordinate covalent bond during the chemical adsorption [9-11].
On the basis of earlier reported work9 the IR spectra of complex were recorded in the range of 4000-400 cm-1 as KBr pallets.IR absorption value for carbonyl group was changed from 1671.50 Cm-1 to 1667.34 Cm-1 due to the coordinate covalent bond of carbonyl oxygen with copper metal atom.
The proposed structure and molecular weight depends upon the mole ratio, one mole of metal and two moles of gluconic acid to form coordinate covalent bond. The proposed formula is (C6H12O7)2Fe and (C6H12O7)2Zn for Fe and Zn salts, respectively.