Crystal and molecular structure of bisbipyridyl-.mu.-dihydroxo-dicopper(II) nitrate

Majeste, R. J.; Meyers, Edward A.

doi:10.1021/j100713a012

Cited by 81 publications

(37 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Averaging over both ligands, the difference between the mean N-N length nearer to the Cu atom and that further from the Cu atom is 3.6(9) The significance of such small differences can be judged by standard statistical methods. The bond lengths within the bipyridine ligand are in accordance with the reported values for monobipy complexes of Cu(I1) and Ag(I1) (3,14,15) and the free bipy molecule (16). Table 4(a) gives the bond angles for the Cu coordination.…”

Section: Resultssupporting

confidence: 85%

“…The angles of the 6 membered rings deviate 53.6" from 1203, whereas the other angles are generally less regular, as might be expected. The bond angles involving the bipy ligand are colnparable with the reported values in the literature (3,(14)(15)(16) are not planar and that the Cu atom lies almost in these least squares planes. Two reasonably good planes (4 and 6) are found involving the atoms N(3)" and N(6)', but the Cu atom lies 11 and 17 pm respectively from these planes.…”

Section: Resultssupporting

confidence: 80%

“…Planes 7, 8, and 9 show that individually each pyridyl ring is planar but that the complete bipyridyl ligand is non-planar. The departure from planarity can be described as a rotation about C(5)-C(6), and this phenomenon is commonly observed in coordinated bipyridine compounds (3,14,15).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

The Crystal and Molecular Structure of Diazido-2,2′-bipyridinecopper(II)

Bushnell¹,

Khan²

1974

Can. J. Chem.

View full text Add to dashboard Cite

The crystal and molecular structure of diazido-2,2′-bipyridinecopper(II), C10H8N2(N3)2Cu, is determined by single crystal X-ray diffraction, and refined to an R value of 0.067. The cell dimensions are a = 664.9(2), b = 843.3(1), c = 1082.0(2) pm, α = 86.99(2)°, β = 87.77(3)°, γ = 78.59(2)°. The space group is [Formula: see text] (No. 2) with 2 molecules per unit cell and the measured density is 1.71(2) g cm−3. The copper coordination is square planar with two additional longer bonds. The coordinate bond lengths in pm to the bipyridine ligand are: Cu—N(1), 201.6(6); Cu—N(2), 201.9(6). The coordinate bonds to the azido ligands are: Cu—N(3), 194.9(6); Cu—N(6), 196.6(6). The longer bonds are: Cu—N(3)″, 268.0(8), Cu—N(6)′ 268.2(8). The N—N bond lengths within each azido ligand are unequal: N(3)—N(4), 118.2(10); N(4)—N(5), 115.4(11); N(6)—N(7), 119.2(9); N(7)—N(8), 114.8(9). The angles at N(3) and N(6) are both 130° and at N(4) and N(7) the angles are both 175(1)°. Each azide takes part in asymmetric bridging through a single nitrogen atom. The results are compared with other structural studies on azido complexes and to a nitrate complex of Ag(II) which is structurally similar.

show abstract

Section: Resultssupporting

confidence: 85%

Section: Resultssupporting

confidence: 80%

See 1 more Smart Citation

The Crystal and Molecular Structure of Diazido-2,2′-bipyridinecopper(II)

Bushnell¹,

Khan²

1974

Can. J. Chem.

View full text Add to dashboard Cite

show abstract

“…Cu202 core has not been seen in copper(II) carboxylate complexes before, but a similar core was found in [Cu2(OH)2L,] type complexes (Casey, Hoskins & Whillans, 1970;Majeste & Meyers, 1970;Mitchell, Bernard & Wasson, 1970;Lewis, Hatfield & Hodgson, 1972). It is worth noting that there is no H atom in both a-hydroxyl groups for the title compound, while there are still OH ligands in the Cu2(OH)2Ln complexes.…”

supporting

confidence: 58%

Structure of a new type of copper carboxylate complex: [Cu(C14H8O3)(C10H8N2)]2.C3H7N.H2O

Liu¹

1992

Acta Crystallogr C

View full text Add to dashboard Cite

show abstract

“…Hatfield Jeter, Lewis, Hempel, Hodgson & Hatfield, 1972) and similar studies on the analogous systems [Cu(bipy)OH] 2+, where bipy is 2,2'-bipyridine (Casey, Hoskins & Whillans, 1970;Majeste & Meyers, 1970;Barnes, Hodgson & Hatfield, 1972) and [Cu(tmen)OH] 2+, where tmen = tetramethylethylenediamine (Mitchell, Bernard & Wasson, 1970;Cole & Brumage, 1970) we were able to deduce that the value of 2J, the singlet-triplet energy separation, decreases as the Cu-O-Cu bridging angle ~0 increases, and that 2J changes from positive to negative in the region 97 to 99 ° .…”

Section: Introductionmentioning

confidence: 80%

The crystal and molecular structure of di-μ-hydroxobis[di(1,10-phenanthroline)chromium(III)] chloride hexahydrate

Veal¹,

Hatfield²,

Hodgson³

1973

Acta Crystallogr Sect B

View full text Add to dashboard Cite

THE STRUCTURES OF FLUORIDES. Iresult of decreasing stability of the octahedral structure with decreasing cation size, with a consequent tendency to form fivefold and, finally, tetrahedral coordination. In the alkali metal niobates (Megaw, 1968b) The Crystal and Molecular Structure of Di-~t-hydroxobisldi(1,10-phenanthroline)chromium(III)l Chloride Hexahydrate BY JACK T. VEAL,* WILLIAM E. HATFIELD AND DEREK J. HODGSONt Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27514, U.S.A. (Received 17 May 1972; accepted 14 September 1972)The crystal and molecular structure of di-/t-hydroxobis[di(1,10-phenanthroline)chromium(IlI)] chloride hexahydrate, [Cr(phen)2OH]2Cla.6H20, has been determined from three-dimensional counter X-ray data. The material crystallizes in the triclinic space group PI with two dimeric formula units in a cell whose dimensions are a= 14.056 (7), b= 11.296 (6), c= 18.990 (9) A, ~=87.15 (3), fl= 107-63 (2), and ),=74.68 (3) °. The observed and calculated densities are 1.39 (4) and 1.342 g cm -3 respectively. The structure has been refined by full-matrix least-squares techniques to a conventional R value of 0.077 for 3392 independent intensities greater than three times their estimated standard deviations. The complex consists of pairs of chromium atoms which are linked by two hydroxo bridges, with two 1,10-phenanthroline groups coordinated to each metal; the coordination geometry around each chromium is roughly octahedral. The average Cr-N and Cr-O bond lengths are 2-052 (6) and 1.927 (6) .~, respectively, while the Cr-Cr separation is 3.008 (3) ,& and the average Cr-O-Cr angle is 102-7 (4) °. The geometry of this complex is compared with that of [Cr(gly)2OH]2 and with those of complexes of the type [CuLOH]~. +, and the magnetic properties of the complex are discussed in terms of the bridging geometry.

show abstract

Crystal and molecular structure of bisbipyridyl-.mu.-dihydroxo-dicopper(II) nitrate

Cited by 81 publications

References 1 publication

The Crystal and Molecular Structure of Diazido-2,2′-bipyridinecopper(II)

The Crystal and Molecular Structure of Diazido-2,2′-bipyridinecopper(II)

Structure of a new type of copper carboxylate complex: [Cu(C14H8O3)(C10H8N2)]2.C3H7N.H2O

The crystal and molecular structure of di-μ-hydroxobis[di(1,10-phenanthroline)chromium(III)] chloride hexahydrate

Contact Info

Product

Resources

About