Synthesis and Structure of New Ternary Nitrides and Chalcogenides PDF Download
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Author: Paul E. Rauch
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
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Author: Paul E. Rauch
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
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Author: James Emmett Jerome
Publisher:
ISBN:
Category :
Languages : en
Pages : 976
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Author: Deborah A. Vennos
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
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We have synthesized a new ternary nitride, Ca3CrN3 (calcium chromium nitride), from the binary nitrides at high temperature. The refined structure was solved in the Cmcm space group with lattice constants a=8.503(2), b=10.284(2), c=5.032(1), and R=3.9%, R(w)=3.9%. This new structure type consists of sheets of (CrN3)6( - ) planar triangular units and calcium ions. Ca3CrN3 is insulating and paramagnetic with Cr3(+) in the low spin state. This is the first unambiguous example of low spin Cr3(+). Larger than expected antiferromagnetic interactions produce a maximum in the magnetic susceptibility at 245K, even though the shortest Cr-Cr distance is 4.73A. Solid state nitrides, Crystal structure, Magnetic properties, Low dimensional compounds, Triangular planar units, Paramagnetic insulator, Solid state chemistry. (jg).
Author: David Stanley Bem
Publisher:
ISBN:
Category :
Languages : en
Pages : 508
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Author: S.T. Oyama
Publisher: Springer Science & Business Media
ISBN: 9400915659
Category : Science
Languages : en
Pages : 565
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This book arose from a symposium titled 'Transition Metal Carbides and Nitrides: Preparation, Properties, and Reactivity' organized by Jae Sung Lee, Masatoshi Nagai and myself. The symposium was part of the 1995 Congress of Pacific Rim Chemical Societies, held in Honolulu, Hawaii between December 17-22, 1995. The meeting was the first major conference to exclusively address the theme of metal carbides and nitrides, and brought together many of the major researchers in the field. Over 50 scientists and engineers reported their latest findings in five sessions of presentations and discussions. The book closely follows the topics covered in the conference: Theory of bonding Structure and composition Catalytic properties Physical properties New methods of preparation Spectroscopy and microscopy The book is unique in its coverage. It provides a general introduction to the properties and nature of the materials, but also covers their latest applications in a wide variety of fields. It should thus be of interest to both experts and nonexperts in the fields of material science, solid-state chemistry, physics, ceramics engineering, and catalysis. The first chapter gives an overview, and many of the chapters provide summaries of advanced topics. All contributions were peer-reviewed.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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We have synthesized a new ternary nitride, Ca3VN3, from the binary nitrides at high temperature. The refined structure was solved in the P21 sub 1/ m space group with lattice constants a=6.717 (2), b=5.064 (2), c=6.720 (3), Beta=78.88 (3), Z=2, and R=3.2%, Rw=3.7%. The structure is related to the recently reported A3MN3 compounds (1) with sheets of (VN3)6- trigonal planar units and calcium ions. Ca3VN3 is insulating with V(3+) in the low-spin state, S=0.
Author: Ming-Yau Chern
Publisher:
ISBN:
Category :
Languages : en
Pages : 334
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Author: Glen Robert Kowach
Publisher:
ISBN:
Category :
Languages : en
Pages : 466
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Author: American Chemical Society. Committee on Professional Training
Publisher:
ISBN: 9780841227231
Category : Science
Languages : en
Pages : 1700
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 726
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