Different cation-protonation patterns in mol-ecular salts of unsymmetrical dimethyhydrazine

C2H9N2·Br and C2H9N2·H2PO3

Judita Katinaitė, William T. A. Harrison

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Abstract

We describe the syntheses and crystal structures of two mol-ecular salts containing the 1,1-di-methyl-hydrazinium cation, namely 1,1-di-methyl-hydrazin-1-ium bromide, C2H9N2 (+)·Br(-), (I), and 2,2-di-methyl-hydrazin-1-ium di-hydrogen phosphite, C2H9N2 (+)·H2PO3 (-), (II). In (I), the cation is protonated at the methyl-ated N atom and N-H⋯Br hydrogen bonds generate [010] chains in the crystal. In (II), the cation is protonated at the terminal N atom and cation-to-anion N-H⋯O and anion-to-anion O-H⋯O hydrogen bonds generate (001) sheets.

Original languageEnglish
Pages (from-to)1206-1210
Number of pages5
JournalActa Crystallographica Section E: Crystallographic Communications
Volume72
Issue number8
DOIs
Publication statusPublished - 1 Aug 2016

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Protonation
Cations
Salts
Positive ions
salts
Anions
cations
Negative ions
anions
Hydrogen bonds
hydrogen bonds
Phosphites
Atoms
Bromides
atoms
bromides
Hydrogen
Crystal structure
Crystals
crystal structure

Keywords

  • crystal structure
  • unsymmetrical dimethylhydrazine
  • protonation pattern
  • hydrogen bonds

Cite this

@article{196e90239eb14b54a491451368f496bb,
title = "Different cation-protonation patterns in mol-ecular salts of unsymmetrical dimethyhydrazine: C2H9N2·Br and C2H9N2·H2PO3",
abstract = "We describe the syntheses and crystal structures of two mol-ecular salts containing the 1,1-di-methyl-hydrazinium cation, namely 1,1-di-methyl-hydrazin-1-ium bromide, C2H9N2 (+)·Br(-), (I), and 2,2-di-methyl-hydrazin-1-ium di-hydrogen phosphite, C2H9N2 (+)·H2PO3 (-), (II). In (I), the cation is protonated at the methyl-ated N atom and N-H⋯Br hydrogen bonds generate [010] chains in the crystal. In (II), the cation is protonated at the terminal N atom and cation-to-anion N-H⋯O and anion-to-anion O-H⋯O hydrogen bonds generate (001) sheets.",
keywords = "crystal structure, unsymmetrical dimethylhydrazine, protonation pattern, hydrogen bonds",
author = "Judita Katinaitė and Harrison, {William T. A.}",
note = "Acknowledgements We thank the EPSRC National Crystallography Service (University of Southampton) for the data collections.",
year = "2016",
month = "8",
day = "1",
doi = "10.1107/S2056989016011993",
language = "English",
volume = "72",
pages = "1206--1210",
journal = "Acta Crystallographica Section E: Crystallographic Communications",
issn = "2056-9890",
publisher = "International Union of Crystallography",
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TY - JOUR

T1 - Different cation-protonation patterns in mol-ecular salts of unsymmetrical dimethyhydrazine

T2 - C2H9N2·Br and C2H9N2·H2PO3

AU - Katinaitė, Judita

AU - Harrison, William T. A.

N1 - Acknowledgements We thank the EPSRC National Crystallography Service (University of Southampton) for the data collections.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - We describe the syntheses and crystal structures of two mol-ecular salts containing the 1,1-di-methyl-hydrazinium cation, namely 1,1-di-methyl-hydrazin-1-ium bromide, C2H9N2 (+)·Br(-), (I), and 2,2-di-methyl-hydrazin-1-ium di-hydrogen phosphite, C2H9N2 (+)·H2PO3 (-), (II). In (I), the cation is protonated at the methyl-ated N atom and N-H⋯Br hydrogen bonds generate [010] chains in the crystal. In (II), the cation is protonated at the terminal N atom and cation-to-anion N-H⋯O and anion-to-anion O-H⋯O hydrogen bonds generate (001) sheets.

AB - We describe the syntheses and crystal structures of two mol-ecular salts containing the 1,1-di-methyl-hydrazinium cation, namely 1,1-di-methyl-hydrazin-1-ium bromide, C2H9N2 (+)·Br(-), (I), and 2,2-di-methyl-hydrazin-1-ium di-hydrogen phosphite, C2H9N2 (+)·H2PO3 (-), (II). In (I), the cation is protonated at the methyl-ated N atom and N-H⋯Br hydrogen bonds generate [010] chains in the crystal. In (II), the cation is protonated at the terminal N atom and cation-to-anion N-H⋯O and anion-to-anion O-H⋯O hydrogen bonds generate (001) sheets.

KW - crystal structure

KW - unsymmetrical dimethylhydrazine

KW - protonation pattern

KW - hydrogen bonds

U2 - 10.1107/S2056989016011993

DO - 10.1107/S2056989016011993

M3 - Article

VL - 72

SP - 1206

EP - 1210

JO - Acta Crystallographica Section E: Crystallographic Communications

JF - Acta Crystallographica Section E: Crystallographic Communications

SN - 2056-9890

IS - 8

ER -