1,4,8,11-Tetraazoniacyclotetradecane tetrakis(phenylphosphonate) dihydrate forms hydrogen-bonded sheets

Abstract

In the title compound, C(10)H(28)N(4)(4+).4C(6)H(6)O(3)P(-).2H(2)O, the cation lies across a centre of inversion in space group P2(1)/n. The two independent anions and the water molecule are linked by four O-H.O hydrogen bonds [H.O = 1.74-2.15 (3) A, O.O = 2.5482 (14)-3.0438 (16) A and O-H.O = 160-176 (2) degrees ] into sheets containing equal numbers of centrosymmetric R(6)(6)(16) and R(10)(10)(36) rings. The cation lies at the centre of the R(10)(10)(36) ring and is linked to it by eight N-H.O hydrogen bonds [H.O = 1.77-1.98 A, N.O = 2.6756 (15)-2.8168 (16) A and N-H.O = 151-169 degrees ].

rac-1-Phenylethylammonium carboxymethylphosphonate(1–): hydrogen-bonded anion sheets with pendent cations

“…A single sheet of this type passes through each unit cell. The two-dimensional anion substructure of (I) is thus the same as that observed in the imidazolium salt (Videnova-Adrabinska, 2002), but differs from that found in the salt formed with 1,2bis(4 H -pyridyl)ethane, where the anion sheets consist of alternating R 2 2 (12) and R 6 6 (28) rings (Bowes et al, 2003). A more common occurrence of the R 2 2 (8) motif in salts with diamines is…”

“…The structures of carboxymethylphosphonic acid [HOOC-CH 2 P(O)(OH) 2 ] and its ammonium salt (NH 4 + ÁC 2 H 4 O 5 P À ) were reported several years ago (Lis, 1997), and since then the supramolecular structures have been reported for a number of salts formed by reaction of this acid with a range of organic diamines (Farrell et al, 2001;Videnova-Adrabinska, 2002;Bowes et al, 2003). We report here the supramolecular structure of the salt, (I), formed with a racemic chiral monoamine, viz.…”

High-Z′ structures of organic molecules: their diversity and organizing principles

“…HAXLAV; Mocilac et al, 2012) may indicate a missed modulation unless the disorder has little effect on the van der Waals surface of the molecule. The case of MACCID02 (Z 0 = 4, Z * = 6, substantial disorder; Bowes et al, 2003) and the corrected structure MACCID03 (Z 0 = Z * = 4, no disorder; Cascarano et al, 2013) is cautionary.…”

Supramolecular structures of 1-phenylethylammonium tartrates

“…In the present series, even when the anion substructures are two-dimensional, the variety and the sizes of the hydrogen-bonded rings from which the sheets are built are different in every case. We have previously observed very marked diversity of supramolecular aggregation in series involving geometrical (constitutional) as opposed to setereochemical (con®gurational) isomerism (Bowes et al, 2003a;Glidewell et al, 2002Glidewell et al, , 2004. In the salts (I) and (IV), where both components are enantiopure, there is no hint of any mimicry of pseudosymmetry (Figs.…”