Crystal structure of methylpyridylphenylhydrazone tetracarbonyl molybdenum(O), C17H13MoN3O4

Shamsudin, M.; Affan, Md. Abu; Hitam, Ramli B.; Yamin, Bohari Mohd.; Boshaala, Ahmed; Fun, Hoong‐Kun; Ibrahim, Abdul Razak

doi:10.1515/ncrs-1999-0235

Cited by 3 publications

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“…The IR spectra of 1 and 2 show four active ν(C≡O) normal modes in the 1810-2015 cm - [24,25], those containing organic ligands with N-aromatic donor atoms are far less common. Most of the reported structures belonging to this family contain either 2-pyridyl substituted ligands [26][27][28][29][30][31][32][33][34][35][36][37][38], 2,2'-bipyridine [39][40][41][42][43][44][45][46] or 1,10-phenanthroline [47,48] (and their derivatives). Thiel and co-workers described two structures for tetracarbonyl complexes of molybdenum chelated by 2-(3-pyrazolyl)pyridine residues [22,49].…”

Section: Resultsmentioning

confidence: 99%

Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

et al. 2006

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Abstract:We report the one-step syntheses in good yields of the complexes cis-[M(CO) 4 (pzpy)] {M = Mo, W; pzpy = ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate} directly from the corresponding M(CO) 6 starting materials by using microwave-assisted heating and reaction times of either 30 s (M = Mo) or 15 min (M = W). The structure of the molybdenum tetracarbonyl complex was determined by single crystal X-ray diffraction. The compound is monomeric and the molybdenum atom has a highly distorted octahedral geometry. The close packing of the individual cis-[Mo(CO) 4 (pzpy)] species is essentially driven by the need to fill the space effectively, closely mediated by weak C-H···O and π···π interactions.

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Section: Resultsmentioning

confidence: 99%

Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

et al. 2006

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Coordination reactions of 2-pyridinecarboxaldehyde-phenylhydrazonatolithium with selected transition metal (Zn, Sn, Fe, Co, Ni and Zr) chlorides and its coupling reaction with dichloromethane

et al. 2016

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The reactions of 2-pyridinecarboxaldehyde-phenylhydrazonatolithium C5H4Npy-CH[double bond, length as m-dash]Ni-NaLi(Ph) (abbreviated as Li) with a 1/2 equivalent of anhydrous metal (Zn, Sn, Fe and Co) chlorides or NiCl2(DME) (DME = 1, 2-dimethoxyethane) produced the corresponding mononuclear metal(ii) complexes ( and ), in which each ligand acts as a bidentate ligand and the coordination geometries around the metals are shown to be tetrahedral within the complexes , , and , respectively, and a tetragonal pyramid in the complex . The reaction of Li successively with sodium tert-butoxide and anhydrous ZrCl4 afforded the unanticipated bizirconium complex , in which each monoanionic ligand behaves as a tridentate bridge. Whereas treatment of Li with NiCl2 and then CH2Cl2 led to an interesting methylene-bridged bis(2-pyridyl-phenylhydrazone) compound in moderate yield; a comparative experiment showed that when the Li reacted with CH2Cl2, the coupling compound was also obtained but in very low yield. A plausible mechanism of compound formation was also proposed and supported by the density functional theory (DFT) calculations. All the synthesized compounds were characterized by single-crystal X-ray diffraction.

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Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

et al. 2006

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We report the one-step syntheses in good yields of the complexes cis-[M(CO) 4 (pzpy)] {M = Mo, W; pzpy = ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate} directly from the corresponding M(CO) 6 starting materials by using microwave-assisted heating and reaction times of either 30 s (M = Mo) or 15 min (M = W). The structure of the molybdenum tetracarbonyl complex was determined by single crystal X-ray diffraction. The compound is monomeric and the molybdenum atom has a highly distorted octahedral geometry. The close packing of the individual cis-[Mo(CO) 4 (pzpy)] species is essentially driven by the need to fill the space effectively, closely mediated by weak C-H···O and π···π interactions.

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Crystal structure of methylpyridylphenylhydrazone tetracarbonyl molybdenum(O), C17H13MoN3O4

Abstract: C17H13M0N3O4, monoclinic, P\2\ln\ (No. 14), a = 7.3032(7) Ä, b= 14.747(3) k,c= 16.248(2) Ä,ß = 92.69(1)°, V = 1748.0 Ä 3 , Ζ = 4, R % {F) = 0.032, R W (F 2 ) = 0.060, Τ = 293 Κ.

Cited by 3 publications

References 3 publications

Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

Coordination reactions of 2-pyridinecarboxaldehyde-phenylhydrazonatolithium with selected transition metal (Zn, Sn, Fe, Co, Ni and Zr) chlorides and its coupling reaction with dichloromethane

Microwave Assisted Synthesis of Molybdenum and Tungsten Tetracarbonyl Complexes with a Pyrazolylpyridine Ligand. Crystal structure of cis-[Mo(CO)4{ethyl[3-(2-pyridyl)-1-pyrazolyl]acetate}]

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