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Bis-(guanidinium) naphthalene-1,5-di-sulfonate-18-crown-6 (1/1).

ABSTRACT: In the crystal of the title compound, 2CH(6)N(3) (+)·C(10)H(6)O(6)S(2) (2-)·C(12)H(24)O(6), the 1,5-naphthnalenedisulfonate anion and the 18-crown-6 mol-ecule lie across inversion centers. The guanidin-ium cation links with the 1,5-naphthnalenedisulfonate anion and 18-crown-6 mol-ecule via N-H⋯O hydrogen bonds.

SUBMITTER: Wei B

PROVIDER: S-EPMC3343960 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(pyridinium) naphthalene-1,5-di-sulfonate dihydrate.

Project description:The asymmetric unit of the title organic salt, 2C(5)H(6)N(+)·C(10)H(6)O(6)S(2) (2-)·2H(2)O, consists of a pyridinium cation, half a naphthalene-1,5-disulfonate dianion and a water mol-ecule. The dianion has a crystallographically imposed centre of symmetry. In the crystal, N-H?O and O-H?O hydrogen bonds link cations, anions and water mol-ecules into a three-dimensional network.

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Dimethyl-ammonium guanidinium naphthalene-1,5-disulfonate.

Project description:The asymmetric unit of the title salt, CH(6)N(3) (+)·C(2)H(8)N(+)·C(10)H(6)O(6)S(2) (2-), consists of one dimethyl-ammonium cation, one guanidinium cation, and two half naphthalene-1,5-disulfonate anions, which lie on inversion centers. N-H?O hydrogen bonds link the cations and anions into layers parallel to the ab plane. The layers have a sandwich-like structure, with the sulfonate groups and cations forming outer slices and the naphthalene ring systems inside.

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Guanidinium chloride-18-crown-6 (2/1).

Project description:In the crystal of the title compound, 2CH(6)N(3) (+)·2Cl(-)·C(12)H(24)O(6), the 18-crown-6 mol-ecule is located across an inversion center. The guanidinium cation links to the 18-crown-6 mol-ecule and chloride anion via N-H?O and N-H?Cl hydrogen bonds.

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Project description:In the title compound, 2CH(6)N(3) (+)·2Br(-)·C(12)H(24)O(6), the 18-crown-6 mol-ecule lies about an inversion center, whereas the guanidinium cation and bromide anion are in general positions. The guanidinium cations link with the bromide anions and the crown ether mol-ecules via N-H?O and N-H?Br hydrogen bonds, thus forming a three-dimensional network.

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Project description:The title compound, C12H12O2, lies across an inversion centre. The mol-ecular structure suggests that the meth-oxy groups in the 1- and 5-positions of the naphthalene moiety do not significantly distort the planar conformation of the ring system, which has a maximum deviation of 0.0025?(9)?Å. In the crystal, mol-ecules pack in a herringbone arrangement in layers parallel to (100) and with chains propagating along [101] formed by very weak C-H?O inter-actions.

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Crystal structure of di-aqua-[5,10,15,20-tetra-kis-(4-meth-oxy-phen-yl)porphyrinato-?(4) N]iron(III) di-aqua-(18-crown-6)potassium bis-(tri-fluoro-methane-sulfonate)-18-crown-6 (1/2).

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Supra-molecular inter-actions in 2,6-di-amino-4-chloro-pyrimidin-1-ium 5-chloro-salicylate and bis-(2,6-di-amino-4-chloro-pyrimidin-1-ium) naphthalene-1,5-di-sulfonate.

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Bis(diisopropyl-ammonium) naphthalene-1,5-disulfonate.

Project description:In the title compound, 2C(6)H(16)N(+)·C(10)H(6)O(6)S(2) (2-), the cations and anions are associated via N-H?O and C-H?O hydrogen-bonding inter-actions.

| S-EPMC3247441 | biostudies-literature

Bis(trimethyl-ammonium) naphthalene-1,5-disulfonate.

Project description:The asymmetric unit of the title compound, 2C(3)H(10)N(+)·C(10)H(6)S(2)O(6) (2-), contains a half-anion, which is completed by inversion symmetry, and one cation. The cations and anions are associated via strong N-H?O(sulfonate) hydrogen-bonding inter-actions, forming cation-anion-cation groups. Secondary inter-actions such as C-H(ammonium)?O(sulf-on-ate) and van der Waals inter-actions link the cations and anions together in a three-dimensional crystal structure, with zigzag rows of cations lying between layers of anions.

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Project description:The title compound, 2C(7)H(7)N(2) (+)·C(10)H(6)O(6)S(2) (2-)·3H(2)O, consists of two crystallographically independent benzimidazolium cations, two independent naphthalene-1,5-disulfonate dianions (both generated by inversion) and three water mol-ecules. These components construct an infinite three-dimensional framework in the crystal structure via O-H⋯O and N-H⋯O hydrogen bonds.

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