[PDF] Top 20 Un programa de alto rendimiento para estudiantes de la escuela y facultades de ciencias sociales
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Tetra μ benzoato κ8O:O′ bis[(2 benzamidopyridine κN1)copper(II)]
... Coordination polymers containing symmetric multidentate carboxylate molecules as bridging ligands have attracted increasing attention because of their interesting network structures and potential applications in many ... See full document
44
A new polymorph of tetra μ benzoato κ8O:O′ bis[(dimethyl sulfoxide κO)copper(II)]
... For the dimethyl sulfoxide molecule that contains disordered atoms S1A and S1B population parameters 0.90 for S1A and 0.10 for S1B, atom C51 was refined as common to both disordered site[r] ... See full document
70
Tetra μ benzoato O:O′ bis[(benzoato O,O′)(1,10 phenanthroline N,N′)lanthanum(III)]
... symmetry. Among them, two benzoate groups also behave as chelating ligands to the La atoms. Another benzoate ion and a 1,10-phenanthroline (phen) molecule chelate with each La atom in the terminal position of the cage. ... See full document
224
Bis(μ 4 methylbenzoato) κ3O,O′:O;κ3O:O,O′ bis[aqua(4 methylbenzoato κ2O,O′)(nicotinamide κN1)cadmium]
... The average Cd-O bond length (Table 1) is 2.4080 (13) Å, and the Cd atom is displaced out of the least-squares planes of the carboxylate groups (O1/C1/O2) and (O3/C9/O4) by -0.5904 (1) and 0.3109 (1) Å, ... See full document
5
The compound described as tetra μ nitroaminato bis[aquacopper(II)] is tetra μ acetato bis[aquacopper(II)]
... reported (OÈztuÈrk et al., 2003). Our interest in this material was kindled by the fact that, while the coordinated water molecule acts as a double donor in OÐH O hydrogen bonds, neither of the supposed amino ... See full document
5
Bis[μ 3,3′,5,5′ tetra tert butylbiphenyl 2,2′ diyl phosphonato(1–)]bis[(acetonitrile)carbonylrhodium(I)] dichloromethane sesquisolvate
... The tert-butyl groups containing C20 and C28 are rota- tionally disordered, whilst those containing C18 and C26 are not. This lack of disorder may be attributable to the presence of weak CÐH O interactions of C18, ... See full document
19
cyclo Tetra μ malato κ16O,O′,O′′:O′′′ tetrakis[bis(1H benzimidazole κN3)cobalt(II)] eicosahydrate
... geometry. The tridentate malate dianion chelates the Co II ion, and the chelate six- and five-membered rings show half-chair and envelope configurations, respectively. A face-to-face separation of 3.494 (9) A ˚ between ... See full document
140
Tetrakis(μ benzoato κ2O:O′)bis(4 ethylpyridine κN)dicopper(II)
... Data collection: SMART Bruker, 2004; cell refinement: SAINT Bruker, 2004; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 1997; programs used to refine struc[r] ... See full document
201
Tetrakis(μ benzoato)bis[(N,N diethylnicotinamide)zinc(II)]
... The two zinc ions are not considered to be directly bonded to each other in this structure. The Zn Zn separation of 2.8660 (4) AÊ is the shortest observed for zinc complexes of this kind, previous values ranging from ... See full document
14
catena Poly[[trimethyltin(IV)] μ 3 (trimethylstannylsulfanyl)benzoato κ2O:O′]
... Trialkyltin(IV) alkanoates and arylcarboxylates generally exist as carboxylate-bridged chains (Tiekink, 1991, 1994); the conformation of the chain depends on how one molecule is related to the next, but is usually a ... See full document
16
Bis(μ L arginine κ3N2,O:O′)bis(L arginine κ2N2,O)tetra μ chlorido tetrachloridotetracopper(II)
... Four title molecules are present in the asymmetric unit. In the molecular structure a each copper atom binds to three Cl atoms and one N and one O atoms from organic ligand (Fig. 1), resulting in a distorted ... See full document
109
Tetra μ benzoato bis[benzoato(2,2 bipyridyl)terbium(III)]
... the O atoms of the bridging carboxylates, two by the O atoms of the terminal bidentate carboxylates, and the remaining positions occupied by two N atoms of a 2,2 0 -bipyridyl ... See full document
53
Tetra μ benzoato bis[(quinoxaline)copper(II)]
... benzoate groups and two terminal quinoxaline ligands. The octahedral coordination around each Cu atom, with four O atoms in the equatorial plane, is completed by an N atom of a quinoxaline molecule [Cu—N = 2.2465 ... See full document
169
Tetra μ benzoato bis[(6 methylquinoline)copper(II)]
... four O atoms in the equatorial plane, is completed by the N atom of the 6-methylquinoline molecule [Cu—N = ...four O atoms. The molecular packing is stabilized by one intramolecular C—H O as well as ... See full document
93
Tetra μ benzoato bis[(3 methylquinoline)copper(II)](Cu—Cu)
... wheel-type dinuclear complex molecule contains four bridging benzoate groups and two terminal 3-methylquinoline ligands. The asymmetric unit contains one and a half molecules with a total of three independent Cu atoms; ... See full document
184
Bis(μ benzoato κ2O:O′)bis(benzoato κO)octabutyldi μ3 oxido tetratin(IV)
... Sn O interactions between the different O atoms of the outer carboxyl groups with the inner, as well as outer, Sn atoms give rise to a strongly distorted octahedral coordination at these Sn ...and O ... See full document
66
catena Poly[[tetra μ formato κ8O:O′ dicopper(II)] μ hexamethylenetetramine κ2N1:N5]
... the Cu II atom is five-coordinated in a square-pyramidal geometry that is defined by four O atoms from four formate ligands and one N atom from a hexamethylenetetramine ligand. The two Cu II atoms are separated by ... See full document
89
Bis{μ 2,2′ [1,1′ (ethane 1,2 diyldinitrilo)diethylidyne]diphenolato κ5O,N,N′,O′:O}bis[chloridomanganese(III)]
... by the reaction between manganese(II) o-chlorobenzoate and the Schiff base generated in situ by the condensation of ethane-1,2-diamine and o-hydroxyacetophenone. The centro- symmetric dimer contains two ... See full document
140
Bis{μ 2,2′ [o phenylenebis(nitrilomethylidyne)]diphenolato}dicopper(II) N,N′ dimethylformamide disolvate
... phenylenebis(nitrilomethylidyne)]diphenol}, and two dimethylformamide solvent molecules. The Cu II atom is bonded to two N imino atoms and three phenolate O atoms of salphen. One deprotonated phenol group of each ... See full document
115
Bis(μ 2,2′ oxydibenzoato κ4O,O′:O′′,O′′′)bis[(4,4′ dimethyl 2,2′ bipyridine κ2N,N′)zinc(II)] dihydrate
... Data collection: APEX2 Bruker, 2007; cell refinement: SAINT Bruker, 2007; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 2008; programs used to refine struc[r] ... See full document
156
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