The crystal structure of aceto-acetanilide azo-pigments IV. C.I. pigment yellow 98, α-(1-hydroxyethylidene)-acet-2-methyl-4-chloroanilido-α-azo(4′-chloro-2′-nitrobenzene)
Abstract
The crystal structure of C.I. Pigment Yellow 98, α-(1-hydroxyethylidene)acet-2-methyl-4-chloroanilido-α-azo-(4′-chloro-2′-nitrobenzene), C17H14O4N4Cl2, has been determined by single crystal X-ray diffraction techniques. It crystallises in the triclinic system with cell parameters a = 8.297 ± 0.001 Å, b = 10.551 ± 0.002 Å, c = 11.856 ± 0.001 Å, α = 113.14 ± 0.01°, β = 67.84 ± 0.01°, γ = 107.88 ± 0.01°. The space group is P[unk] and there are two molecules per unit cell. The structure was solved by direct methods and least-squares refinement has been completed on three-dimensional data (2806 reflections; CuKα radiation). The hydrogen atoms have been found and included but only those associated with the methyl groups have been refined. The final residual is 6.0%. The molecule exists as the hydrazone tautomer and intramolecular hydrogen bonds keep the molecule approximately planar. The molecules are packed in layers parallel to the (0[unk]3) plane and in columns parallel to the b axis. Alternate molecules within the columns are in antiparallel. The molecules are linked by van der Waals forces.
Artikel in diesem Heft
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- The crystal structure of aceto-acetanilide azo-pigments IV. C.I. pigment yellow 98, α-(1-hydroxyethylidene)-acet-2-methyl-4-chloroanilido-α-azo(4′-chloro-2′-nitrobenzene)
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- Crystal structure of Te(OH)6 ·2KNO3 ·2H2O: an addition compound of telluric acid
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Artikel in diesem Heft
- Referate des Fachkolloquiums „Charakterisierung von Kristallen“ und der 15. Jahrestagung der Deutschen Gesellschaft für Kristallwachstum und Kristallzüchtung 20. bis 23. März 1984 in Aachen
- Verfeinerung der Kristallstruktur von Dicadmiumgermanat Cd2GeO4
- The crystal structure of aceto-acetanilide azo-pigments IV. C.I. pigment yellow 98, α-(1-hydroxyethylidene)-acet-2-methyl-4-chloroanilido-α-azo(4′-chloro-2′-nitrobenzene)
- A single-crystal investigation of the solid solution NiB48.5 of β-rhombohedral boron type structure
- Crystal structure of Te(OH)6 ·2KNO3 ·2H2O: an addition compound of telluric acid
- Die Kristallstrukturen von KCo(CO)4 und RbCo(CO)4
- Generalizations of the hc notation
- Die Kristallstrukturen von LiCo(CO)4 und NaCo(CO)4
- Ending the “P21/a coesite” discussion
- (Z)Bis(benzenesulfonyl)ethylene adducts to cyclopentadiene and norbornadiene
- Elastic, electrostrictive, and electro-optic properties of tetragonal sodium sulfide nonahydrate, Na2S · 9 H2O
- Elastic, electrostrictive, and electro-optic properties of orthorhombic sodium dihydrogen phosphate dihydrate, NaH2PO4 · 2H2O
- Elastic, electrostrictive, electro-optic, and nonlinear optical properties of tetragonal zinc guanidinium sulfate, Zn[C(NH2)3]2(SO4)2
- Pyroelectric, dielectric, thermal, piezoelectric, electro-optical, elastic, and thermoelastic properties of hexagonal guanidinium iodide, C(NH2)3I
