[The infrared spectra of alkyl hydrogen styrylphosphonates and their complexes with metals].
The infrared spectra in the range of 4000 approximately 650cm(-1) for alkyl hydrogen styrylphosphonates (HA (SP)), 2-ethylhexyl hydrogen 2-ethylhexylphosphonate and di-2-ethylhexyl hydrogen phosphate and their complexes with metals were recorded. The tested HA (SP) included n-octyl, 2-ethylhexyl, 1-methylheptyl and sec-alkyl (C11-13) hydrogen styrylphos- phonates. The metals studied were Fe ( III ), Cr ( III ), In ( III ), Nd ( III ), Cu ( II ), Co ( II ), Ni ( II ), Ca( II ) and Mg( II ). In the spectra of these organophosphorus compounds adsorption at approximately 1450cm(-1) is present only in HA (SP). The Spectra of HA (SP) show the broad absorption of hydrogen bonded OH at approximately 2200 and 2600cm(-1) ( vOH ). For each of the organophosphorus monoacids upon complexation with the metals excepting Ca and Mg, the vOH disappears and the v(P=O) shifts to a lower frequency , wthereas in the cases of Ca and Mg the OH, P=O and P--O-- absorption bands all become broader.
Zheng
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L
Jianghan University, 430010 Wuhan.
Zhang
X
X
Wang
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