Structural characterization of α-amino acid complexes of molybdates: a spectroscopic and DFT study

被引：8
作者：
Biancalana, Lorenzo [1 ]
Bortoluzzi, Marco [2 ]
Forte, Claudia [3 ]
Marchetti, Fabio [1 ]
Pampaloni, Guido [1 ]
机构：
[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56124 Pisa, Italy
[2] CaFoscari Univ Venice, Dipartimento Sci Mol & Nanosistemi, I-30123 Venice, Italy
[3] CNR, Ist Chim Composti OrganoMetall, Area Ric Pisa, I-56124 Pisa, Italy
来源：
RSC ADVANCES | 2015年 / 5卷 / 12期
关键词：
NUCLEAR-MAGNETIC-RESONANCE; EFFECTIVE CORE POTENTIALS; CRYSTAL-STRUCTURES; MOLYBDENUM PENTACHLORIDE; INFRARED-SPECTRA; METAL-COMPLEXES; MOLECULAR CALCULATIONS; PROTONATION SHIFTS; CHEMICAL-SHIFTS; OXO TRANSFER;
D O I：
10.1039/c4ra14236e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The reactions of L-enantiopure alpha-amino acids (aaH) with Na2MoO4 led to the high-yield isolation of Mo(VI) complexes of general formula Mo2O4(OH)(4)(aaH). A similar outcome was achieved by using (NH4)(6)Mo7O24 in the place of Na2MoO4. Solid-state IR and NMR spectroscopy indicated the presence of cis-MoO2 units linked by a zwitterionic amino acid ligand, via a bidentate bridging coordination through the carboxylate group. Thus possible dinuclear and polynuclear structures are proposed on the basis of DFT calculations.
引用
收藏
页码：9010 / 9018
页数：9
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