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Crystal structure and Hirshfeld surface analysis of 2,4-di-amino-6-phenyl-1,3,5-triazin-1-ium 4-methyl-benzene-sulfonate.

ABSTRACT: In the title mol-ecular salt, C9H10N5+·C7H7O3S-, the asymmetric unit consists of a 2,4-di-amino-6-phenyl-1,3,5-triazin-1-ium cation and a 4-methyl-benzene-sulfonate anion. The cation is protonated at the N atom lying between the amine and phenyl substituents. The protonated N and amino-group N atoms are involved in hydrogen bonding with the sulfonate O atoms through a pair of inter-molecular N-H⋯O hydrogen bonds, giving rise to a hydrogen-bonded cyclic motif with R22(8) graph-set notation. The inversion-related mol-ecules are further linked by four N-H⋯O inter-molecular inter-actions to produce a complementary DDAA (D = donor, A = acceptor) hydrogen-bonded array, forming R22(8), R42(8) and R22(8) ring motifs. The centrosymmetrically paired cations form R22(8) ring motifs through base-pairing via N-H⋯N hydrogen bonds. In addition, another R33(10) motif is formed between centrosymetrically paired cations and a sulfonate anion via N-H⋯O hydrogen bonds. The crystal structure also features weak S=O⋯π and π-π inter-actions. Hirshfeld surface and fingerprint plots were employed in order to further study the inter-molecular inter-actions.

SUBMITTER: Sangeetha R

PROVIDER: S-EPMC6072993 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure and Hirshfeld surface analysis of 2,4-di-amino-6-methyl-1,3,5-triazin-1-ium tri-chloro-acetate monohydrate.

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Project description:In the title compound, C(4)H(8)N(5) (+)·Cl(-), a two-dimensional layer packing network is observed in which every chloride anion links three adjacent 2,4-diamino-6-methyl-1,3,5-triazin-1-ium cations by N-H?Cl hydrogen-bonding inter-actions, forming 12-membered and eight-membered hydrogen-bonded rings with graph-set motifs R(4) (4)(12) and R(3) (3)(8), respectively. In addition, N-H?N hydrogen bonds are found between adjacent cations, forming another type of eight-membered [R(2) (2)(8)] hydrogen-bonded ring.

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| S-EPMC4555383 | biostudies-literature

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