Fluorinated phosphonic acid compounds, useful as treatments for substrate surfaces, have the formula:
1
wherein:
R
1
is a straight chain alkylene group having from about 3 to about 21 carbon atoms, an oxa-substituted straight chain alkylene group having from about 2 to about 20 carbon atoms, or a thia-substituted straight chain alkylene group having from about 2 to about 20 carbon atoms;
R
2
is a perfluoroalkyl group having from about 4 to about 10 carbon atoms;
R
3
is hydrogen, an alkali metal cation, or an alkyl group having from about 1 to about 6 carbon atoms; and
M is hydrogen or an alkali metal cation,
with the proviso that if R
1
is an unsubstituted straight chain alkylene group, then the sum of carbon atoms in R
1
and R
2
combined is at least 10.
Synthesis and coordination chemistry of fluorinated phosphonic acids
作者:James A. Bennett、Eric G. Hope、Kuldip Singh、Alison M. Stuart
DOI:10.1016/j.jfluchem.2009.04.008
日期:2009.7
Phosphonic acids [(HO)(2)P(O)C2H4CnF2n+1] (n = 4, 6) and [(HO)(2)P(O)C6H4-4-CnF2n+1] (n = 0, 1, 6) have been prepared in good yields. Deprotonation and reaction with cis-[PtCl2(PPh3)(2)] affords fluorinated platinum complexes which have been characterised by elemental analysis, mass spectrometry, IR and NMR spectroscopies. The structures of [PtO2P(O)C6H4-4-F}(PPh3)(2)], [PtO2P(O)C6H4-4-CF3}(PPh3)(2)] and [PtO2P(O)C2H4C6F13}(PPh3)(2)] have been determined by single crystal X-ray diffraction. (C) 2009 Elsevier B.V. All rights reserved.