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6-Chloro-N(4),N(4)-dimethyl-pyrimidine-2,4-diamine.

Pang YY, Yu K, Sun B, Guo DS - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: In the packing, each two mol-ecules of B, C and D form centrosymmetric dimers through two inter-molecular N-H⋯N hydrogen bonds, locally creating R(2) (2)(8) motifs.The dimers of C and D are alternately bridged by A into an infinite zigzag strip, locally creating two different R(2) (2)(8) motifs with dihedral angles of 32.9 (1) and 63.4 (1)° between the pyrimidine rings.Finally, these strips together with the dimers of B associate into a complicated three-dimensional framework.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, Shandong Normal University, Jinan 250014, People's Republic of China.

ABSTRACT
The asymmetric unit of the title compound, C(6)H(9)ClN(4), contains four independent mol-ecules (A, B, C and D). Their main difference is the torsion angles, ranging from 1.6 (5) to 5.9 (5)°, between the methyl group and the pyrimidine plane. A pair of inter-molecular N-H⋯N hydrogen bonds link mol-ecules A and C into a twisted dimer with a dihedral angle of 32.9 (1)° between the two pyrimidine rings, creating an R(2) (2)(8) motif. In the packing, each two mol-ecules of B, C and D form centrosymmetric dimers through two inter-molecular N-H⋯N hydrogen bonds, locally creating R(2) (2)(8) motifs. The dimers of C and D are alternately bridged by A into an infinite zigzag strip, locally creating two different R(2) (2)(8) motifs with dihedral angles of 32.9 (1) and 63.4 (1)° between the pyrimidine rings. Finally, these strips together with the dimers of B associate into a complicated three-dimensional framework.

No MeSH data available.


Related in: MedlinePlus

An infinite zigzag strip formed by a combination of A, C and D through hydrogen bonds, showing different R22(8) motifs. For the sake of clarity, H atoms not involved in the motifs have been omitted [symmetry codes: (ii) -x + 1, -y + 1, -z + 1; (iii) -x, -y, -z + 1].
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Fap3: An infinite zigzag strip formed by a combination of A, C and D through hydrogen bonds, showing different R22(8) motifs. For the sake of clarity, H atoms not involved in the motifs have been omitted [symmetry codes: (ii) -x + 1, -y + 1, -z + 1; (iii) -x, -y, -z + 1].


6-Chloro-N(4),N(4)-dimethyl-pyrimidine-2,4-diamine.

Pang YY, Yu K, Sun B, Guo DS - Acta Crystallogr Sect E Struct Rep Online (2012)

An infinite zigzag strip formed by a combination of A, C and D through hydrogen bonds, showing different R22(8) motifs. For the sake of clarity, H atoms not involved in the motifs have been omitted [symmetry codes: (ii) -x + 1, -y + 1, -z + 1; (iii) -x, -y, -z + 1].
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3344442&req=5

Fap3: An infinite zigzag strip formed by a combination of A, C and D through hydrogen bonds, showing different R22(8) motifs. For the sake of clarity, H atoms not involved in the motifs have been omitted [symmetry codes: (ii) -x + 1, -y + 1, -z + 1; (iii) -x, -y, -z + 1].
Bottom Line: In the packing, each two mol-ecules of B, C and D form centrosymmetric dimers through two inter-molecular N-H⋯N hydrogen bonds, locally creating R(2) (2)(8) motifs.The dimers of C and D are alternately bridged by A into an infinite zigzag strip, locally creating two different R(2) (2)(8) motifs with dihedral angles of 32.9 (1) and 63.4 (1)° between the pyrimidine rings.Finally, these strips together with the dimers of B associate into a complicated three-dimensional framework.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, Shandong Normal University, Jinan 250014, People's Republic of China.

ABSTRACT
The asymmetric unit of the title compound, C(6)H(9)ClN(4), contains four independent mol-ecules (A, B, C and D). Their main difference is the torsion angles, ranging from 1.6 (5) to 5.9 (5)°, between the methyl group and the pyrimidine plane. A pair of inter-molecular N-H⋯N hydrogen bonds link mol-ecules A and C into a twisted dimer with a dihedral angle of 32.9 (1)° between the two pyrimidine rings, creating an R(2) (2)(8) motif. In the packing, each two mol-ecules of B, C and D form centrosymmetric dimers through two inter-molecular N-H⋯N hydrogen bonds, locally creating R(2) (2)(8) motifs. The dimers of C and D are alternately bridged by A into an infinite zigzag strip, locally creating two different R(2) (2)(8) motifs with dihedral angles of 32.9 (1) and 63.4 (1)° between the pyrimidine rings. Finally, these strips together with the dimers of B associate into a complicated three-dimensional framework.

No MeSH data available.


Related in: MedlinePlus