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1,10-Phenanthrolin-1-ium hydrogen d,l-tartrate dihydrate.

ABSTRACT: In the title hydrated molecular salt, C(12)H(9)N(2) (+)·C(4)H(5)O(6) (-)·2H(2)O, the cation is almost planar (r.m.s. deviation = 0.014?Å); the carbon skeleton of the anion assumes a trans conformation [C-C-C-C torsion angle = -179.86?(14)°]. The carboxyl end of one hydrogen tartrate anion forms a short hydrogen bond to the carboxyl-ate end of another anion [O?O = 2.508?(2)?Å] in a head-to-tail manner, forming a chain; the chains and water mol-ecules inter-act, generating an O-H?O hydrogen-bonded layer. The cation binds to the layer by an N-H?O hydrogen bond.

SUBMITTER: Cheng SF

PROVIDER: S-EPMC3120439 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature

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1,10-Phenanthrolin-1-ium hydrogen d,l-tartrate dihydrate.

Cheng Sit Foon SF Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110507 Pt 6

In the title hydrated molecular salt, C(12)H(9)N(2) (+)·C(4)H(5)O(6) (-)·2H(2)O, the cation is almost planar (r.m.s. deviation = 0.014 Å); the carbon skeleton of the anion assumes a trans conformation [C-C-C-C torsion angle = -179.86 (14)°]. The carboxyl end of one hydrogen tartrate anion forms a short hydrogen bond to the carboxyl-ate end of another anion [O⋯O = 2.508 (2) Å] in a head-to-tail manner, forming a chain; the chains and water mol-ecules inter-act, generating an O-H⋯O hydrogen-bonded ...[more]

PMID: 21754708

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1,10-Phenanthrolin-1-ium hydrogen (S,S)-tartrate trihydrate and a correction.

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Bis(1,10-phenanthrolin-1-ium) tetra-chlorido-zincate monohydrate.

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Project description:In the structure of the title salt, C(12)H(7)N(2)O(2) (+)·CF(3)SO(3) (-), the cation participates in hydrogen bonding with the dione group of an adjacent cation as well as with the trifluoro-methane-sulfonate anion. In addition, there is an extensive network of C-H?O inter-actions between the cations and anions. There are two formula units per asymmetric unit. The crystal studied exhibits inversion twinning.

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Project description:In the structure of the 1:1 proton-transfer compound of 1,10-phenanthroline with 4,5-dichloro-phthalic acid, C(12)H(9)N(2) (+)·C(8)H(3)Cl(2)O(4) (-), determined at 130?K, the 1,10-phenanthrolinium cation and the hydrogen 4,5-dichloro-phthalate anion associate through a single N-H?O(carbox-yl) hydrogen bond giving discrete units which have no extension except through a number of weak cation C-H?O(anion) associations and weak cation-anion aromatic ring ?-? inter-actions [minimum centroid-centroid separation = 3.6815?(12)?Å]. The anions are essentially planar "[maximum deviation 0.214?(1)?Å (a carboxyl O)] with the syn-related H atom of the carboxyl group, forming a short intra-molecular O-H?O(carbox-yl) hydrogen bond.

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