Pyrazine-2,3-dicarboxylic acid

Thathan Premkumar; Subbiah Govindarajan; Wojciech Starosta; Janusz Leciejewicz

doi:10.1107/S1600536804016216

Pyrazine-2,3-dicarboxylic acid

Thathan Premkumar
, Subbiah Govindarajan
, Wojciech Starosta
, Janusz Leciejewicz

Bharathiar University
Institute of Nuclear Chemistry and Technology, Warsaw

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The title compound, C₆H₄N₂O₄, is a new unsolvated form of pyrazine-2,3-dicarboxylic acid. The asymmetric unit contains two independent molecules with different geometry. The planes of the carboxylic groups make dihedral angles with the planar pyrazine rings of 22.7 (2) and 50.0 (2)° in one molecule, and 9.7 (2) and 79.1 (2)° in the other. The molecules form layers in which hydrogen bonds occur, with O⋯O distances ranging from 2.728 (2) to 2.773 (2) A. The shortest distance between two adjacent layers is 3.5 A, indicating van der Waals interactions.

Original language	English
Pages (from-to)	o1305-o1306
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	60
Issue number	8
DOIs	https://doi.org/10.1107/S1600536804016216
State	Published - Aug 2004
Externally published	Yes

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title = "Pyrazine-2,3-dicarboxylic acid",

abstract = "The title compound, C6H4N2O4, is a new unsolvated form of pyrazine-2,3-dicarboxylic acid. The asymmetric unit contains two independent molecules with different geometry. The planes of the carboxylic groups make dihedral angles with the planar pyrazine rings of 22.7 (2) and 50.0 (2)° in one molecule, and 9.7 (2) and 79.1 (2)° in the other. The molecules form layers in which hydrogen bonds occur, with O⋯O distances ranging from 2.728 (2) to 2.773 (2) A. The shortest distance between two adjacent layers is 3.5 A, indicating van der Waals interactions.",

author = "Thathan Premkumar and Subbiah Govindarajan and Wojciech Starosta and Janusz Leciejewicz",

year = "2004",

month = aug,

doi = "10.1107/S1600536804016216",

language = "English",

volume = "60",

pages = "o1305--o1306",

journal = "Acta Crystallographica Section E: Structure Reports Online",

issn = "1600-5368",

publisher = "International Union of Crystallography",

number = "8",

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TY - JOUR

T1 - Pyrazine-2,3-dicarboxylic acid

AU - Premkumar, Thathan

AU - Govindarajan, Subbiah

AU - Starosta, Wojciech

AU - Leciejewicz, Janusz

PY - 2004/8

Y1 - 2004/8

N2 - The title compound, C6H4N2O4, is a new unsolvated form of pyrazine-2,3-dicarboxylic acid. The asymmetric unit contains two independent molecules with different geometry. The planes of the carboxylic groups make dihedral angles with the planar pyrazine rings of 22.7 (2) and 50.0 (2)° in one molecule, and 9.7 (2) and 79.1 (2)° in the other. The molecules form layers in which hydrogen bonds occur, with O⋯O distances ranging from 2.728 (2) to 2.773 (2) A. The shortest distance between two adjacent layers is 3.5 A, indicating van der Waals interactions.

AB - The title compound, C6H4N2O4, is a new unsolvated form of pyrazine-2,3-dicarboxylic acid. The asymmetric unit contains two independent molecules with different geometry. The planes of the carboxylic groups make dihedral angles with the planar pyrazine rings of 22.7 (2) and 50.0 (2)° in one molecule, and 9.7 (2) and 79.1 (2)° in the other. The molecules form layers in which hydrogen bonds occur, with O⋯O distances ranging from 2.728 (2) to 2.773 (2) A. The shortest distance between two adjacent layers is 3.5 A, indicating van der Waals interactions.

UR - https://www.scopus.com/pages/publications/18444406898

U2 - 10.1107/S1600536804016216

DO - 10.1107/S1600536804016216

M3 - Article

AN - SCOPUS:18444406898

SN - 1600-5368

VL - 60

SP - o1305-o1306

JO - Acta Crystallographica Section E: Structure Reports Online

JF - Acta Crystallographica Section E: Structure Reports Online

IS - 8

ER -

Pyrazine-2,3-dicarboxylic acid

Abstract

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