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921por Kaabi, Kamel, El Glaoui, Meher, Pereira Silva, P. S, Ramos Silva, M., Ben Nasr, Cherif“…In the title compound, [CdCl(2)(C(5)H(7)N(3)O)(2)], the Cd(II) atom is six-coordinated by two heterocyclic N atoms [Cd—N = 2.261 (2) and 2.286 (2) Å] and two O atoms [Cd—O = 2.624 (2) and 2.692 (2) Å] from two bidentate chelate 2-amino-6-methylpyrimidin-4(1H)-one ligands and two chloride ions [Cd—Cl = 2.4674 (6) and 2.4893 (7) Å]. …”
Publicado 2010
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922“…In the title co-crystal C(6)H(9)N(3)O(2)·C(10)H(9)NO(2), the 4,6-dimethoxypyrimidin-2-amine molecule interacts with the carboxyl group of the 2-(1H-indol-3-yl)acetic acid molecule through N—H⋯O and O—H⋯N hydrogen bonds, forming a cyclic hydrogen-bonded R (2) (2)(8) motif, which is further linked by an N—H⋯N hydrogen bond, forming a supramolecular chain along the c axis. …”
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923“…The structure is isomorphous with that of one of the polymorphs of 4,4,6-trimethyl-1-phenyl-3,4-dihydropyrimidine-2(1H)-thione [Yamin et al. (2005 ▶). Acta Cryst. …”
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924por Aiyub, Zaharah, Badaruddin, Edura, Abdullah, Zanariah, Fairuz, Zainal A., Ng, Seik Weng, Tiekink, Edward R. T.“…The distorted octahedral geometry of the metal atom is completed by an N-donor atom of the N-ethylpyrimidin-2-amine ligand: an intramolecular N—H⋯O hydrogen links its N—H group to an acetate carboxylate O atom. …”
Publicado 2010
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925
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926“…In the title compound, [Pd(C(9)H(6)N(3)O(3)S)Cl], the Pd(II) ion is coordinated by one O and two N atoms from a 4-(pyridin-2-yl)pyrimidine-2-sulfonate ligand and one chloride anion in a distorted square-planar geometry. …”
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927por Zhu, Hai-Bin“…In the macrocyclic centrosymmetric dinuclear complex, [Ag(2)(C(19)H(14)N(6)S(2))(2)](ClO(4))(2), the Ag(I) atom, bis{[4-(2-pyridyl)pyrimidin-2-yl]sulfanyl}methane (2-bppt) ligand and perchlorate anion each lie on a twofold rotation axis. …”
Publicado 2010
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928
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929“…In the title compound, C(13)H(15)ClN(2)S, the dihydropyrimidine ring is essentially planar, with a maximum deviation from the least-squares plane of 0.122 (3) Å for the unsubstitued olefinic C atom. …”
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930“…The title compound, C(19)H(16)N(4), is one of the few known 3,7-diaryl-1,2,4-triazolo[4,3-c]pyrimidines. The triazolopyrimidine unit is essentially planar (r.m.s. deviation = 0.048 Å). …”
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931por Ziaulla, Mohamed, Banu, Afshan, Begum, Noor Shahina, Panchamukhi, Shridhar I., Khazi, I. M.“…The benzothiene and pyrimidine rings are almost coplanar with an angular tilt of 2.371 (9)° between them. …”
Publicado 2011
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932“…The benzene ring is almost perpendicular to the dihydropyrimidine ring, with a dihedral angle of 83.97 (14)°. …”
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933por Yang, Wen-Na“…The Co(II) atom, in an octahedral enviroment, is coordinated by four N atoms from two 2-methylsulfanyl-4-(pyridin-2-yl)pyrimidine ligands and two Cl atoms.…”
Publicado 2011
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934“…The aldehyde group is in the same plane as the pyrimidine ring [with a maximum deviation of 0.083 (2) Å for the O atom), and the linear propargyl group [C—C—C = 178.99 (19)°] makes a dihedral angle of 74.36 (13)° with the ring.…”
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935“…One of them is formed between the pyrimidine ring (donor) and the carboxylate group (acceptor) from the benzoate, whereas the other ring is formed by N—H⋯O interactions, which help to form a dimer between two symmetry-related salts in the unit cell. …”
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936“…In the title compound, C(19)H(17)N(3)O(2), the dihedral angles between the pyrimidine ring and the two benzene rings are 34.87 (12) (for the directly-bonded ring) and 69.57 (12)°. …”
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937
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938“…In the asymmetric unit of the title co-crystal, C(7)H(5)NO(4)·C(12)H(14)N(4)O(2)S, there are two independent but conformationally similar heterodimers, which are formed through intermolecular N—H⋯O(carboxy) and carboxyl–pyrimidine O—H⋯N hydrogen-bond pairs, giving a cyclic motif [graph set R (2) (2)(8)]. …”
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939
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940“…In the asymmetric unit of the title co-crystal, C(12)H(14)N(4)O(2)S·C(7)H(5)NO(4), the sulfamethazine and 2-nitrobenzoic acid molecules form a heterodimer through intermolecular amide–carboxylic acid N—H⋯O and carboxylic acid–pyrimidine O—H⋯N hydrogen-bond pairs, giving a cyclic motif [graph set R (2) (2)(8)]. …”
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