Synthesis and Structural Characterization of Metal Compounds Incorporating the Ortho-Quinone Manganese Tricarbonyl Complex as an Organometalloligand

Single-crystal X-ray structure determinations are recorded for two unusual trigonal planar XCuL2 species, X = halogen, L = monodentate N- base. For iodobis (2-methylquinoline)copper(I) (1) crystals are orthorhombic, P212121, a 15.079(7), b 12.592(7), c 9.585(4)Ǻ, Z 4. R was 0.028 for 1285 independent 'observed' reflections; the copper(I) environment is trigonal planar [I-Cu, 2.533(2); Cu-N, 2.034(6), 2.0l5(7)Ǻ; I-Cu-N are 119.1(2), 120.4(2) and N-Cu-N, 120.4(2)°]. For the mixed base complex bromo (3,5-dimethylpyridine)(2,4,6-trimethylpyridine )copper(I) (2), crystals are triclinic, pī , a 13.643(5), b 8.434(5), c 8.163(4)Ǻ, α 59.65(4), β 79.76(4), γ 89.68(4)°, Z 2; R was 0.046 for 1551 'observed' reflections. Br-Cu is 2.418(2); Cu-N, 1.971(5), 1.963(6)Ǻ; Br-Cu-N are 113.5(2), 110.0(2) and N-Cu-N, 136.4(3)°.

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Rhenium(i) tricarbonyl complex of 5,20-bis(p-tolyl)-10,15-bis(p-methoxyphenyl)-21-selenaporphyrin: first X-ray structural characterization of metal complex of 21-selenaporphyrin

Dalton Transactions ◽

10.1039/c3dt51024g ◽

2013 ◽

Vol 42 (30) ◽

pp. 10798 ◽

Cited By ~ 7

Author(s):

Avijit Ghosh ◽

Rajesh Gonnade ◽

Mangalampalli Ravikanth

Keyword(s):

Metal Complex ◽

Structural Characterization ◽

Tricarbonyl Complex ◽

X Ray

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Structural characterization of calcium glycinate, magnesium glycinate and zinc glycinate

Journal of Innovative Optical Health Sciences ◽

10.1142/s1793545816500528 ◽

2017 ◽

Vol 10 (03) ◽

pp. 1650052 ◽

Cited By ~ 2

Author(s):

Li-Hui Yin ◽

Xu-Ping Liu ◽

Lu-Yao Yi ◽

Jin Wang ◽

Ya-Jun Zhang ◽

...

Keyword(s):

Structural Characterization ◽

Metal Ion ◽

Chemical Properties ◽

Structure Characterization ◽

Metal Compounds ◽

Nutrient Supplements ◽

Physico Chemical ◽

Metal Contents ◽

New Type

Metal glycinate chelates are formed by glycine and metal compounds through chemical reactions. Calcium glycinate, magnesium glycinate and zinc glycinate are kinds of new-type and ideal nutrient supplements, which have satisfactory physico-chemical properties and bioactivities. They are important for prophylaxis and treat metal deficiency. The structural characterization shows that the metal ion is bonded to the amino and carboxyl group to form two five-membered rings. This paper mainly studies the structure characterization of the metal chelated glycinates by their solubility, infrared spectrum, thermal analysis, mass spectrometry, polycrystal diffraction, the metal contents and glycine contents of calcium glycinate, magnesium glycinate and zinc glycinate.

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Synthesis and Structural Characterization of New Perfluoroacyl and Perfluoroalkyl Group 6 Transition Metal Compounds

Organometallics ◽

10.1021/om1001183 ◽

2010 ◽

Vol 29 (8) ◽

pp. 1948-1955 ◽

Cited By ~ 9

Author(s):

Hui Huang ◽

Russell P. Hughes ◽

Arnold L. Rheingold

Keyword(s):

Transition Metal ◽

Structural Characterization ◽

Transition Metal Compounds ◽

Metal Compounds ◽

Group 6 ◽

Perfluoroalkyl Group

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Lewis-Base Adducts of Main Group-1 Metal-Compounds. IX. Synthesis and Structural Characterization of Adducts of the Lithium(1) Halides With N,N,N',N'-Tetramethylethylenediamine

Australian Journal of Chemistry ◽

10.1071/ch9881925 ◽

1988 ◽

Vol 41 (12) ◽

pp. 1925 ◽

Cited By ~ 19

Author(s):

CL Raston ◽

BW Skelton ◽

CR Whitaker ◽

AH White

Keyword(s):

Single Crystal ◽

Structural Characterization ◽

Chloride Complex ◽

Lewis Base ◽

Metal Compounds ◽

X Ray ◽

Binuclear Species ◽

Iodide Form ◽

Group 1

Crystalline adducts of the lithium(I) halides, LiX (X = Cl , Br, I) with N,N,N′,N′- tetramethylethyl-enediamine (tmeda) have been synthesized and characterized by single-crystal X-ray studies. Both bromide and iodide form 1 : 1 adducts which are μ,μ-dihalo-bridged binuclear species, [( tmeda )LiX2Li( tmeda )], with four-coordinate N2LiX2 lithium environments; in addition, the iodide yields an ionic 1 : 2 adduct, [Li( tmeda )2]+I-. The chloride complex is a novel 3 : 2 polymer based an a double cubane Li6Cl6 unit solvated by chelating and bridging tmeda units.

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New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100160467 ◽

1990 ◽

Vol 48 (3) ◽

pp. 582-583

Author(s):

S. F. Hayes ◽

M. D. Corwin ◽

T. G. Schwan ◽

D. W. Dorward ◽

W. Burgdorfer

Keyword(s):

Lyme Disease ◽

Borrelia Burgdorferi ◽

Structural Characterization ◽

Negative Staining ◽

Low Speed ◽

Thin Sectioning ◽

Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

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