3,4-Dimethylanilinium chloride monohydrate

Abstract

The crystal structure of the title compound, C8H12N+·Cl−·H2O, consists of hydro­phobic layers of dimethyl­anilinium cations parallel to the bc plane alternated by hydro­philic layers of chloride anions and water mol­ecules. The layers are linked by N—H⋯O and N—H⋯Cl hydrogen bonds involving the ammonium groups of the cations. The cohesion of the ionic structure is further stabilized by O—H⋯Cl hydrogen-bonding inter­actions.

2-Amino-3-carboxypyrazin-1-ium nitrate monohydrate

“…For similar compounds, see: Berrah et al (2005a,b); Bouacida et al (2005Bouacida et al ( , 2009; Dobson & Gerkin (1996). For hydrogenbond graph-set motifs, see: Etter et al (1990); Bernstein et al (1995).…”

“…As a part of our search for new hybrid compounds based on protonated amines (Berrah et al 2005a,b;Bouacida et al 2005;2009), we present the crystal structure of the title compound, (I).…”

Bis(cytosinium) aquapentachloridoindate(III)

“…For related structures, see: Bouacida (2008); Bouacida et al (2005Bouacida et al ( , 2009; Casellato et al (1995); Cherouana et al (2003). For standard bond lengths see: Allen et al (1987).…”

Bis(2-amino-3-carboxypyrazin-1-ium) sulfate dihydrate

“…For related compounds, see: Berrah et al (2005aBerrah et al ( ,b, 2011; Bouacida et al (2005Bouacida et al ( , 2009; Dobson & Gerkin (1996). For hydrogen-bond motifs, see: Bernstein et al (1995); Etter et al (1990).…”

“…N-heterocyclic compounds such as pyrazine and its derivatives may be interesting units to built new edifices involving original hydrogen-bonding scheme since they include a variety of potential hydrogen donors and acceptors. In this perspective and as a part of our search for new hybrid compounds based on protonated amines and imines (Berrah et al 2011(Berrah et al , 2005aBouacida et al 2005Bouacida et al ,2009, we present here the structure of Bis (2-Amino-3-carboxypyrazin-1-ium) sulfate dihydrate.…”