145247-36-5Relevant academic research and scientific papers
The synthesis and reactions of Mn and Re formyl complexes, fac-(P-P)M(CO)3CHO. The X-ray structure of fac-(dppp)Mn(CO)3CH2OCH3
Mandal, Santosh K.,Krause, Jeanette A.,Orchin, Milton
, p. 113 - 118 (1994)
Treatment of the salts fac- (M=Mn, Re; P-P=dppe, dppp) with NaBH4 gives the corresponding formyl complexes, fac-(P-P)M(CO)3CHO in excellent yield.Solutions of these formyls undergo spontaneous loss of CO to give the corresponding hydride
Synthesis and X-ray structures of manganese(I) and rhenium(I) formato complexes, fac-(CO)3(dppp)M-OC(H)O
Williams, Miyoshia T.,McEachin, Christopher,Becker, Thomas M.,Ho, Douglas M.,Mandal, Santosh K.
, p. 308 - 312 (2007/10/03)
The mononuclear manganese(I) and rhenium(I) formato complexes, fac-(CO)3(dppp)M-OC(H)O (M=Mn, 1; M=Re, 2), have been prepared from fac-(CO)3(dppp)MH and formic acid, and their X-ray structures determined. Compounds 1 and 2 are unusual in that the formato ligands are bound in a terminal, monodentate fashion. For Mn, only multinuclear complexes containing bridging formato ligands have been characterized previously by X-ray diffraction. The M-O bond lengths and M-O-C bond angles are 2.043(2) ? and 124.2(2)°, respectively for 1 and 2.167(3) ? and 122.3(3)°, respectively for 2. Compounds 1 and 2 can also be decarboxylated at elevated temperatures with quantitative recovery of fac-(CO)3(dppp)MH.
The synthesis and reactions of Re1 carboxylic acids. The X-ray structure of fac-Re(CO)3(dppp)CO2D*0.5C6D6
Mandal, Santosh K.,Ho, Douglas M.,Orchin, Milton
, p. 53 - 64 (2007/10/02)
The metallocarboxylic acids Re(CO)3(P-P)C(O)OH where (P-P) is either dppe or dppp and their deuterio analogs have been prepared from the reaction of +BF4- with NaOH(D) and characterized.Concentrated benzene solutions of the dppp complex deposit the acid as a dimer with 1 mol of solvated benzene and the X-ray crystal structure study of the deuterio dimer acid is reported.The cationic salts, 1, do not react with alcohols unless base is present.However, the acids are immediately esterified when they are dissolved in alcohols by virtue of the acids' spontaneous ionization through acyl-oxygen cleavage to the cation and hydroxyl anion; the latter abstracts a proton to give the conjugate base of the alcohol required for esterification.Solutions of the acids in DMSO undergo slow decarboxylation to the corresponding hydrides; addition of KOH to either DMSO or DMF solutions results in immediate decarboxylation.
