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Bianthrone 10(10-oxoanthracen-9-ylidene)anthracen-9-one consists of two tricyclic anthraceneone units connected by a carbon-carbon double bond. Crystals of the form obtained under ambient conditions are yellow and contain folded centrosymmetric conformers in which the central ring of the...
The crystal structure of mayenite (12CaO.7Al2O3) has been investigated by single-crystal synchrotron diffraction with high resolution and accuracy, using a four-circle diffractometer equipped with an avalanche photodiode detector (APD) detector installed at PF14A in Tsukuba, Japan. Analysis...
A phosphoric triamide with the formula (4-CH3-C6H4NH)P(O)(NC4H8O)2 has been synthesized and characterized. X-ray crystallography at 120 K reveals that the title compound is composed of two symmetrically independent molecules in the solid state. Density functional theory (DFT) calculations reveal...
The `bond valence (s)-bond length (r)' correlation reported earlier for H-O bonds Brown (2009). Chem. Rev. 109, 6858-6919 has been closely approximated using the function s = ( - r)1/, where = 1.185 (10), = 0.321 (8) and = 0.36.
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