The crystal structure of γ-hydroquinone

Maartmann-Moe, Knut

doi:10.1107/s0365110x66004286

Cited by 81 publications

(61 citation statements)

References 3 publications

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“…These values indicate these hydrogen bonds to be of moderate strength according to suggested values [16]. The same type of interactions with similar strength, are observed in the different polymorphs described for free hydroquinone [17].…”

Section: Resultssupporting

confidence: 76%

A ruthenium carbonyl cluster containing a hydroquinone ligand: A layered structure with a polymetallic species. Structure and electrochemical characterization

Pelayo-Vázquez

González

Leyva

et al. 2012

Journal of Organometallic Chemistry

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Section: Resultssupporting

confidence: 76%

A ruthenium carbonyl cluster containing a hydroquinone ligand: A layered structure with a polymetallic species. Structure and electrochemical characterization

Pelayo-Vázquez

González

Leyva

et al. 2012

Journal of Organometallic Chemistry

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“…The atomic coordinates with BDT and DEB prepared by the previous method 2 were recrystallized from the n-hexane solution, and then sublimed at 70 and 60ЊC, respectively, respect to the monoclinic crystal axes are shown in Table II. Figure 2 shows the molecules of BDT, p-hydroquinone, 6 and 4,4-biphenyldithiol 7 ; bond distances and bond angles are given in these drawings. The endocyclic bond angle at C1 of BDT is somewhat wider than 120Њ, while C1-C3-C2 and C1-C2-C3 are narrow.…”

Section: Mechanics Program (Mmp2mentioning

confidence: 99%

The crystal structure of 1,4-benzenedithiol by rietveld analysis and studies on the mechanism of solid-state addition polymerization of 1,4-benzenedithiol to 1,4-diethynylbenzene

Ohashi

Kobayashi

Jinbo

et al. 1997

J. Polym. Sci. A Polym. Chem.

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The crystal structure of 1,4‐benzenedithiol (BDT) was determined by the Rietveld method based on the calculation of the atomic coordinates of the BDT molecule using the Molecular Mechanics Program (MMP2). The refined crystal structure of BDT was monoclinic P21/c with dimensions, a = 7.795, b = 7.290, c = 5.955 Å, β = 92.16°, z = 2. The R factor of the refined structure was 0.038. Using above results, the mechanism of solid‐state addition polymerization of BDT to 1,4‐diethynylbenzene (DEB) was studied. Sublimed BDT piles up onto glass plate substrate and forms the layer structure along with the a axis. An inclination angle of the piled BDT column was 60° toward the substrate surface. DEB crystal structure was also monoclinic P21/c with a = 4.007, b = 6.018; c = 15.340 Å, β = 91.42°, z = 2. Sublimation of equimolar mixture of BDT and DEB gave a crystal having 1 : 1 composition, in which DEB column is situated between the columns of BDT. Relative arrangement of both monomers was suitable for the addition of SH and CCH groups, since the distance between the two groups is 3.3 Å by CERIUS II calculation. Therefore, the addition polymerization of BDT to DEB easily proceeded by UV irradiation and the resulting polymer had a highly layer structure along with the a axis of BDT crystal. Tentatively estimated crystal structure of polymer obtained is monoclinic with a = 7.73, b = 7.30, c = 5.95 Å, β = 92.16°. © 1997 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 35: 1621–1625, 1997

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“…the one which has the largest value of f.Ap, where zip is any component of Ar, in this case the z component for the chloride ion. The author has also successfully applied the method to the known structure of hydroquinone (Maartman-Moe, 1966).…”

Section: Fg=4 ~Fj Cos (2nhrj) Cos (2rcharj)mentioning

confidence: 99%

The crystal structure of the 1:1 molecular complex between lumiflavinium chloride and hydroquinone

Karlsson¹

1972

Acta Crystallogr Sect B

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Cette description est la mame quelle que soit la direction x, y ou z envisag6e pour les axes 2x. Crystals of the 1 : 1 molecular complex between lumiflavinium chloride and hydroquinone are monoclinic, space group P21/c with a= 24.15, b= 12.52, c= 12.39 A,, fl= 93.74 °. There are two complexes per asymmetric unit, related by a pseudo-translation ~2,t-t 0,2,,-t~ causing the reflexions with h+ 1 odd to be weak. The structure was solved by direct methods. The problem of determining the phases of the weak odd reflexions was solved by expressing each structure factor as a linear function of the atomic displacement parameters due to the pseudo-translation. The complexes crystallize as isolated units, held together by hydrogen bonds. Within each complex, the angle between the molecular planes is 5.6 ° and the average perpendicular separation is 3.49/~.

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The crystal structure of γ-hydroquinone

Cited by 81 publications

References 3 publications

A ruthenium carbonyl cluster containing a hydroquinone ligand: A layered structure with a polymetallic species. Structure and electrochemical characterization

A ruthenium carbonyl cluster containing a hydroquinone ligand: A layered structure with a polymetallic species. Structure and electrochemical characterization

The crystal structure of 1,4-benzenedithiol by rietveld analysis and studies on the mechanism of solid-state addition polymerization of 1,4-benzenedithiol to 1,4-diethynylbenzene

The crystal structure of the 1:1 molecular complex between lumiflavinium chloride and hydroquinone

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