Synthesis, 95Mo NMR spectra and x-ray crystal structure of MoO2(C14H11N2O)2(C2H5H)1 and Mo2O5(C14H11N2O)2(C2H5OH)1(H2O)1 |
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| Institution: | 1. Department of Materials Science and Engineering, Lehigh University, 5 East Packer Ave. 18015 Bethlehem, PA, United States;2. Institute of Materials Science and Engineering, Faculty of Advanced Technology and Chemistry, Military University of Technology, 2 Kaliskiego Str., 00908 Warsaw, Poland;3. Department of Bioengineering, Lehigh University, 111 Research Drive, Bethlehem, PA 18015, United States;4. Department of Chemistry, Lehigh University, 6 East Packer Avenue, 18015 Bethlehem, PA, United States;5. National Synchrotron Radiation Centre SOLARIS, Jagiellonian University, Czerwone Maki 98, Kraków, 30-392, Poland;6. Institut Charles Gerhardt Montpellier, UMR 5253 CNRS, Université de Montpellier, 34095 Montpellier Cedex 5, France;7. Institute of Optoelectronics, Military University of Technology, 2 Kaliskiego Str., Warsaw 00908, Poland;1. IMDEA Materials Institute, C/Eric Kandel, 2 28906, Madrid, Getafe, Spain;2. Universidad Politécnica de Madrid, E.T.S. de Ingenieros de Caminos, 28040 Madrid, Spain;3. State Key Laboratory of Polyolefins and Catalysis, Shanghai Engineering Research Center of Functional FR Materials, Shanghai Research Institute of Chemical Industry Co. LTD., Shanghai 200062, China;4. Zhejiang Ruico New Material Co., LTD., Huzhou 313018, China;5. Escuela Politécnica Superior. Universidad Francisco de Vitoria, Ctra. Pozuelo-Majadahonda Km 1800 28223, Pozuelo de Alarcón, Madrid, Spain |
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| Abstract: | The crystal structures and 95Mo NMR spectra of two complexes formed between 2-α-hydroxybenzyl- benzimidazole (C6H5·CHOH·C7H5N2=HOBB), as its sodium salt, and MoO2Cl2 are reported. MoO2- (OBB)2]·EtOH (OBB=deprotonated HOBB) crystallizes in space group P21/n, with a=12.8441(7), b=15.917(3), c=13.314(2) Å, β=97.163(8)° and Z =4. The structure was determined from 3096 observed reflections and refined to a final R value of 0.030. The complex is a six coordinate cis-dioxo species, the 95Mo spectrum of which shows a single sharp peak at 56 ppm in dimethylformamide (DMF). The second complex, Mo2O5(OBB)2]·EtOH·H2O, crystallizes in space group Pbca, with a=22.482(4), b=16.442(3), c=18.407(3) Å and Z=8. The structure was determined from 2936 observed reflections and refined to a final R value of 0.061. The complex is a binuclear doubly bridged species in which one metal atom is six coordinate while the other is five coordinate. Its 95Mo NMR spectrum in DMF shows a sharp peak at 124 ppm and a second broader much weaker peak at 51 ppm. |
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