80395-13-7Relevant academic research and scientific papers
Halogen bonding interactions assisted network expansion of a tetrahedral cobalt phosphonate coordination polymer bearing 4,4′-bipyridine ligand
Hu, Zhi-Jia,Sung, Hui-Ling,Wu, Jing-Yun
, (2021)
A new cobalt phosphonate coordination polymer {[Co2(BrBzPO3)2(bpy)]?2H2O}n (1) has been synthesized from the reactions of Co(NO3)2, 2-bromobenzyl phosphonic acid (BrBzP(O)(OH)2), and 4,4′-bipyridine (bpy) via reactants slow diffusion in H2O/ethanol solvent media at 60°C. Single-crystal X-ray diffraction analysis reveals that the Co(II) center has a {CoO3N} tetrahedral geometry. The coordinative network of 1 shows a layer structure constructed from Co–BrBzPO3 chains, which contain four-membered rings assembled from vertex-sharing {CoO3N} and {CPO3} tetrahedral units, connected by bpy linkers. It is worthy to note that net-to-net Br–Br halogen bonding interactions play the key supramolecular interactions to significantly dominate network expansion from a two-dimensional (3,4)-connected coordinative layer with a point symbol of (426)(42638) to a three-dimensional (4,4)-connected supramolecular network having a point symbol of (42638)(42638). Further, there are multiple noncovalent supramolecular interactions involving strong O–H???O and weak C–H???Br and C–H???π interactions that provide powerful supports for stabilizing the whole crystal structure. Thermogravimetric (TG) analysis indicates that the coordinative network of 1 is high thermally stable upon heating to 340°C.
Method of increasing the yields of sugar cane with phosphonic acids
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, (2008/06/13)
This invention discloses a method of increasing the recoverable sugar contained in sugar cane which comprises contacting the sugar cane plant with an effective amount of a compound of the formula STR1 wherein X is selected from the group consisting of alkyl, halogen, trifluoromethyl and alkoxy; n is an integer from 0 to 5; and Z is a straight or branched alkylene group containing from 1 to 5 carbon atoms.
