A new triclinic polymorph of 4,5,6-trimethyl-1-phenyl-3,4- dihydropyrimidine-2(1H)-thione

Nur Liyana Ismail, Eliyanti Othman, Bohari Mohd. Yamin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The title crystal structure, C13H16N2S, is a triclinic polymorph of the previously reported ortho-rhom-bic structure [Yamin, Kasim & Hamzah (2005). Acta Cryst. E61, o55-o57]. In both structures, the phenyl group is almost perpendicular to the pyrimidine-2-thione ring. In the triclinic structure, inversion-related molecules are linked to form a dimer by N - H⋯S hydrogen bonds, whereas in the ortho-rhom-bic polymorph two independent mol-ecules are linked by N - H⋯S hydrogen bonds to form a dimer.

Original languageEnglish
JournalActa Crystallographica Section E: Structure Reports Online
Volume63
Issue number5
DOIs
Publication statusPublished - 2007

Fingerprint

Thiones
Polymorphism
Dimers
Hydrogen bonds
dimers
hydrogen bonds
pyrimidines
Crystal structure
inversions
crystal structure
Molecules
rings
molecules
pyrimidine

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)

Cite this

A new triclinic polymorph of 4,5,6-trimethyl-1-phenyl-3,4- dihydropyrimidine-2(1H)-thione. / Ismail, Nur Liyana; Othman, Eliyanti; Mohd. Yamin, Bohari.

In: Acta Crystallographica Section E: Structure Reports Online, Vol. 63, No. 5, 2007.

Research output: Contribution to journalArticle

@article{0e2777753c7945a99ba4da21f0aa9f80,
title = "A new triclinic polymorph of 4,5,6-trimethyl-1-phenyl-3,4- dihydropyrimidine-2(1H)-thione",
abstract = "The title crystal structure, C13H16N2S, is a triclinic polymorph of the previously reported ortho-rhom-bic structure [Yamin, Kasim & Hamzah (2005). Acta Cryst. E61, o55-o57]. In both structures, the phenyl group is almost perpendicular to the pyrimidine-2-thione ring. In the triclinic structure, inversion-related molecules are linked to form a dimer by N - H⋯S hydrogen bonds, whereas in the ortho-rhom-bic polymorph two independent mol-ecules are linked by N - H⋯S hydrogen bonds to form a dimer.",
author = "Ismail, {Nur Liyana} and Eliyanti Othman and {Mohd. Yamin}, Bohari",
year = "2007",
doi = "10.1107/S1600536807016844",
language = "English",
volume = "63",
journal = "Acta Crystallographica Section E: Structure Reports Online",
issn = "1600-5368",
publisher = "International Union of Crystallography",
number = "5",

}

TY - JOUR

T1 - A new triclinic polymorph of 4,5,6-trimethyl-1-phenyl-3,4- dihydropyrimidine-2(1H)-thione

AU - Ismail, Nur Liyana

AU - Othman, Eliyanti

AU - Mohd. Yamin, Bohari

PY - 2007

Y1 - 2007

N2 - The title crystal structure, C13H16N2S, is a triclinic polymorph of the previously reported ortho-rhom-bic structure [Yamin, Kasim & Hamzah (2005). Acta Cryst. E61, o55-o57]. In both structures, the phenyl group is almost perpendicular to the pyrimidine-2-thione ring. In the triclinic structure, inversion-related molecules are linked to form a dimer by N - H⋯S hydrogen bonds, whereas in the ortho-rhom-bic polymorph two independent mol-ecules are linked by N - H⋯S hydrogen bonds to form a dimer.

AB - The title crystal structure, C13H16N2S, is a triclinic polymorph of the previously reported ortho-rhom-bic structure [Yamin, Kasim & Hamzah (2005). Acta Cryst. E61, o55-o57]. In both structures, the phenyl group is almost perpendicular to the pyrimidine-2-thione ring. In the triclinic structure, inversion-related molecules are linked to form a dimer by N - H⋯S hydrogen bonds, whereas in the ortho-rhom-bic polymorph two independent mol-ecules are linked by N - H⋯S hydrogen bonds to form a dimer.

UR - http://www.scopus.com/inward/record.url?scp=57349150192&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57349150192&partnerID=8YFLogxK

U2 - 10.1107/S1600536807016844

DO - 10.1107/S1600536807016844

M3 - Article

VL - 63

JO - Acta Crystallographica Section E: Structure Reports Online

JF - Acta Crystallographica Section E: Structure Reports Online

SN - 1600-5368

IS - 5

ER -