The crystal and molecular structure of glyoxime

Calleri, M.; Ferraris, Giovanni; Viterbo, D.

doi:10.1107/s0365110x66000136

Cited by 42 publications

(39 citation statements)

References 2 publications

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“…Weighted least-squares mean planes are given i n Table 8. The structural parameters of (9) are compared with those of related compounds (13)(14)(15)(16)(17)(18)(19)(20) and oximes (21)(22)(23)(24)(25)(26)(27)(28)(29) in Table 9. Important inter-and intramolecular nonbonded contacts and details of the hydrogen bonding scheme are given in Table 10.…”

Section: Resultsmentioning

confidence: 99%

Crystal and Molecular Structure of (±)-7,7-(2′,2′-Dimethyl)pentamethylene-1-methyl-norbornane-2-oxime

Rettig¹,

Trotter²

1975

Can. J. Chem.

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Crystals of (±)-7,7-(2′,2′-dimethyl)pentamethylene-1-methyl-norbornane-2-oxime are monoclinic, a = 9.202(2), b = 12.852(3), c = 12.698(3) Å, β = 110.83(2)°, Z = 4, space group P21/c. The structure was solved by direct methods and was refined by full-matrix least-squares procedures to a final R of 0.048 for 1538 reflections with I ≥ 3σ(I). The crystal structure consists of pairs of molecules linked by N … H—O hydrogen bonds (N … O = 2.821(3) Å ) to form centrosymmetric dimers. Bond distances are as follows: C—N = 1.266(3), N—O = 1.426(3), mean C(sp3)—C(sp3) = 1.540, and mean C(sp3)—C(sp3) = 1.511 Å.

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Section: Resultsmentioning

confidence: 99%

Crystal and Molecular Structure of (±)-7,7-(2′,2′-Dimethyl)pentamethylene-1-methyl-norbornane-2-oxime

Rettig¹,

Trotter²

1975

Can. J. Chem.

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“…Similar : 'i! .oo ~, :: -.. effects have been observed in the glyoxime complexes of Ni(II) (Calleri, Ferraris & Viterbo, 1967a;Murmann & Schlemper, 1967), Pd(II) (Calleri, Ferraris & Viterbo, 1967b) and Pt(II) (Ferraris & Viterbo, 1969) and in dimethylglyoxime (Hamilton, 1961). With the exception of the ethyl group and O(1) the molecule is planar.…”

Section: R H Bowers C V Banks and R A Jacobson 2321 Cxpcctcd Fmentioning

confidence: 99%

A redetermination of the crystal and molecular structure of nickel(II) ethylmethylglyoxime

Bowers¹,

Banks²,

Jacobson³

1972

Acta Crystallogr Sect B

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The crystal and molecular structure of bis-(2,3-pentanedionedioximate-N,N')nickel(II) [or nickel(II) ethylmethylglyoxime] has been determined from three-dimensional X-ray diffraction data. The complex crystallizes in the monoclinic system in space group P21/c with two molecules per unit cell. Unit-cell parameters are: a = 4"7471 + 0.0005, b = 11"7409 + 0.0030, e = 11"9895 + 0.0020/~; ~= 91 "611 + 0.016 °. The structural analysis of the complex, based on all reflections out to 50 ° in 20 with Mo Kct radiation (final R value for 802 observed reflections of 4.8 %) reveals an intramolecular hydrogen bond with an O---O distance of 2.454 A. Bond distances in the five-membered chelate ring indicate significant delocalization of the two conjugated carbon-nitrogen double bonds.

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“…The propane-2-nitronate ions are planar (Table 3, planes B and C). The observed C-N distances (1.34, 1.35 A) lie between those for oximes (1.26-1.31 A" Calleri, Ferraris & Viterbo, 1966;Bednowitz, Fankuchen, Okaya & Softer, 1966;Oijen & Romers, 1966;Mootz & Berking, 1969;Andreetti, Cavalca, Manfredotti & Muscatti, 1969) and for nitro compounds (1.46-1.52 /~: Duffin & Wallwork, 1966;Cox & Waring, 1972;Sutor, Calvert & Llewellyn, 1954). It seems likely that these bonds have appreciable doublebond character.…”

Section: (4)mentioning

confidence: 99%