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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Substitution and derivatization reactions of a water soluble iron(II) complex containing a self-assembled tetradentate phosphine ligand
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Substitution and derivatization reactions of a water soluble iron(II) complex containing a self-assembled tetradentate phosphine ligand

机译:含自组装四齿膦配体的水溶性铁(II)配合物的取代和衍生化反应

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Facile substitution reactions of the two water ligands in the hydrophilic tetradentate phosphine complex cis-[Fe{(HOCH2)P{CH2N(CH2P(CH2OH)(2))CH2}(2)P(CH2OH)}(H2O)(2)](SO4) ( abbreviated to [Fe(L-1)(H2O)(2)](SO4),1) take place upon addition of Cl-, NCS-, N-3(-), CO32- and CO to give [Fe(L-1)X-2] (2, X = Cl; 4, X = NCS; 5, X= N-3), [Fe(L-1)(kappa(2)-O2CO)], 6 and [Fe(L-1)(CO)(2)](SO4), 7. The unsymmetrical mono-substituted intermediates [Fe(L-1)(H2O)(CO)](SO4) and [Fe(L-1)(CO)(kappa(1)-OSO3)] (8/9) have been identified spectroscopically en-route to 7. Treatment of 1 with acetic anhydride affords the acylated derivative [Fe{(AcOCH2)P{CH2N(CH2P(CH2OAc)(2))CH2}(2)P(CH2OAc)}(kappa(2)-O2SO2)] (abbreviated to [Fe(L-2)(kappa(2)-O2SO2)], 10), which has increased solubility over 1 in both organic solvents and water. Treatment of 1 with glycine does not lead to functionalisation of L-1, but substitution of the aqua ligands occurs to form [Fe(L-1)(NH2CH2CO2-kappa N-2, O)](HSO4), 11. Compound 10 reacts with chloride to form [Fe(L-2)Cl-2] 12, and 12 reacts with CO in the presence of NaBPh4 to form [Fe(L-2)Cl(CO)](BPh4) 13b. Both of the chlorides in 12 are substituted on reaction with NCS- and N3- to form [ Fe( L2)( NCS) 2] 14 and [ Fe( L2)( N3) 2] 15, respectively. Complexes 2 (.) H2O, 4(.)2H(2)O, 5(.)0.812H(2)O, 6(.)1.7H(2)O, 7 (.) H2O, 10(.)1.3CH(3)C(O)CH3, 12 and 15(.)0.5H(2)O have all been crystallographically characterised.
机译:亲水四齿膦配合物顺式[[Fe {(HOCH2)P {CH2N(CH2P(CH2OH)(2))CH2}(2)P(CH2OH)}(H2O)(2)中两个水配体的轻松取代反应](SO4)(缩写为[Fe(L-1)(H2O)(2)](SO4),1)在向其中添加Cl-,NCS-,N-3(-),CO32-和CO后发生给出[Fe(L-1)X-2](2,X = Cl; 4,X = NCS; 5,X = N-3),[Fe(L-1)(kappa(2)-O2CO)] ,6和[Fe(L-1)(CO)(2)](SO4),7。非对称单取代中间体[Fe(L-1)(H2O)(CO)](SO4)和[Fe( L-1)(CO)(kappa(1)-OSO3)](8/9)已在光谱中鉴定为7。在用乙酸酐处理1时得到酰化衍生物[Fe {(AcOCH2)P {CH2N (CH2P(CH2OAc)(2))CH2}(2)P(CH2OAc)}(kappa(2)-O2SO2)](缩写为[Fe(L-2)(kappa(2)-O2SO2)],10) ,在有机溶剂和水中的溶解度均超过1。用甘氨酸处理1不会导致L-1官能化,但会发生水配体的取代,从而形成[Fe(L-1)(NH2CH2CO2-kappa N-2,O)](HSO4),11。化合物10与氯化物反应形成[Fe(L-2)Cl-2] 12,在NaBPh4存在下12与CO反应形成[Fe(L-2)Cl(CO)](BPh4)13b。 12中的两个氯化物在与NCS-和N3-反应时被取代,分别形成[Fe(L2)(NCS)2] 14和[Fe(L2)(N3)2] 15。配合物2(。)H2O,4(。)2H(2)O,5(。)0.812H(2)O,6(。)1.7H(2)O,7(。)H2O,10(。)1.3 CH(3)C(O)CH3、12和15(。)0.5H(2)O均已通过晶体学表征。

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