Results 271 to 280 of about 907,324 (322)

Polarization Upends Convention: Halogen Bonding Propensities of Main Group Halides. [PDF]

J Phys Chem A
Robinson N, Pham N, Donald KJ.
europepmc   +1 more source

Histopathological Insights into Granulomatous Lesions: A Comprehensive Study.

J Pharm Bioallied Sci
Kumari A, Bali IK, Chauhan A, Chitkara F, Wadhera D.   +4 more
europepmc   +1 more source

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Walking Down the Chalcogenic Group of the Periodic Table: From Singlet to Triplet Organic Emitters.

Chemistry – A European Journal, 2015
The synthesis, X-ray crystal structures, ground- and excited-state UV/Vis absorption spectra, and luminescence properties of chalcogen-doped organic emitters equipped on both extremities with benzoxa-, benzothia-, benzoselena- and benzotellurazole (1X ...
A. Kremer, C. Aurisicchio, F. De Leo, B. Ventura, J. Wouters, N. Armaroli, A. Barbieri, D. Bonifazi   +7 more
semanticscholar   +7 more sources

Peroxides of the Group Two Elements of the Periodic Table

, 1966
All elements of the second group, with the exception of beryllium [1], form peroxide compounds. Peroxides of calcium, strontium, and barium belong to the M2+O2 2- type; while peroxides of magnesium, zinc, and cadmium, of general formula MO2 • xH2O, probably belong to the HO—M—OOH type where the covalent bond between the hydroperoxyl group and the metal
I. I. Vol'nov, A. W. Petrocelli
semanticscholar   +4 more sources

The periodic table: The 6d-5f mixed transition group

Journal of Chemical Education, 1952
With relatively few modifications, the Bohr-type periodic table presented by Glocker and Popov can be made to reflect more instructively the rather complex relationships obtained in the neighborhood of the 4f or gadolinium transition group and, more ...
C. D. Coryell
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The group VIII platinum-group metals and the Periodic Table

Foundations of Chemistry, 2010
The six platinum group metals (pgms: ruthenium, rhodium, palladium, osmium, iridium and platinum) posed a number of problems for 19th-century chemists, including Mendeleev, for their Periodic classification. This account discusses the discovery of the pgms, the determination of their atomic weights and their classification.
W. Griffith
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The stereochemistry of sub-group VIB of the periodic table

Quarterly Reviews, Chemical Society, 1956
S. Abrahams
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Electron-Precise Semiconducting ReGa2Ge: Extending the IrIn3 Structure Type to Group 7 of the Periodic Table.

Inorganic Chemistry, 2020
Intermetallic compounds with semiconducting properties are rare, but they give rise to advanced materials for energy conversion and saving applications. Here, we present ReGa2Ge, a new electron-precise narrow-gap intermetallic semiconductor. The compound
M. Likhanov, V. Verchenko, A. Gippius, S. Zhurenko, A. Tkachev, Zheng Wei, E. Dikarev, A. Kuznetsov, A. Shevelkov   +8 more
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Group theoretical aspects of the periodic table of the elements

Journal of Molecular Structure: THEOCHEM, 1989
Abstract Several attempts to obtain the overall (approximate) symmetry of the periodic system of the elements are discussed. The symmetries are analysed in terms of the prediction of magic numbers in Meyer-Mendeleev's table; this is shown to be a still elusive goal. Other group-theoretical aspects are, however, better understood, such as the roles of
O. Novaro
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