Results 261 to 270 of about 9,360 (305)

Metal-Metal Bonds and Transition-Metal Clusters

2023
Abstract This chapter covers the topics for bond valence and bond number of transition-metal clusters, dinuclear complexes containing metal-metal bonds, clusters with more than two transition metal atoms, so-bond valence and iso-structural series, metal-metal interactions, comproportionation reactions, disproportationation reactions.
Thomas Chung Wai Mak, Yu-San Cheung, Gong-Du Zhou, Ying-Xia Wang   +3 more
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Metal-To-Metal and Metal Gasketed Seals

SAE Technical Paper Series, 1965
<div class="htmlview paragraph">The parameters governing the leakage rate across metal-to-metal and metal gasketed seals are discussed qualitatively and quantitatively based on experimental evidence. The sensitivity of the sealing phenomenon to the surface finish of the mating components is illustrated. The results of several experiments in which
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(iv) Metal-on-metal hip resurfacing

Current Orthopaedics, 2002
The management of an arthritic hip in young active Patients represents a challenge to the treating orthopaedic surgeon. Results of the conventional hip arthroplasty in male patients under 55 have bee shown to approach 70% survivorship at 10 years,(1) Hip resurfacing has many theoretical advantages including bone preservation, reduced risk of ...
Ebied, A, Journeaux, S
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Reactivity of Metal-Metal Bonds

Journal of Organometallic Chemistry, 1972
Abstract The reactivity of Me 3 SnMn(CO) 5 , (CH 2 CHCH 2 ) 3 SnMn(CO) 5 , Me 3 SnFeCp(CO) 2 , and Me 2 Sn[FeCp(CO) 2 ] 2 has been investigated with respect to iodine, organomercury chlorides, trialkyl- and triarylchlorosilane, inorganic chlorides (SiCl 4 , SnCl 4 , TiCl 4 , ZnCl 2 , HgCl 2 ) and Mn 2 (CO) l0 .
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Metal—lingad and metal—metal coupling elements

Journal of Photochemistry and Photobiology A: Chemistry, 1994
Abstract The electronic matrix element coupling a ground and charge-transfer excited state can be calculated from the energy intensity of the appropriate charge-transfer transition. An expression for the electronic coupling element widely used for this purpose is based on equations derived by Mulliken and Hush for an effective two-state model and is ...
Carol Creutz, Marshall D. Newton, Norman Sutin   +2 more
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METAL/METAL ARTICULATING INTERFACES

Orthopedics, 1995
Polyethylene wear can be shown as a problem in long-term joint replacement. Metal-on-metal bearing is solving this problem, as long-term clinical and experimental investigations demonstrate. To avoid the problem of high friction found in old series, a new Metasul called technique with a smaller diameter was invented.
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Metal-on-metal

The Bone & Joint Journal, 2013
Metal-on-metal bearing related issues in hip replacement and resurfacing continue to generate discussion, concern, audit and research as there are still many unknowns and clarity is required regarding the future implantation of such devices and the follow-up and investigation of patients with metal-
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Assessing the Strength of Metal–Metal Interactions

Inorganic Chemistry, 2019
A proper comparison between bond strengths of different atom pairs is relevant only for the same formal bond order (BO) of atomic interactions, e.g., for single bonds, because it is clear that the higher is the BO or the number of the electron pairs responsible of bonding, the stronger is the bond. For the metal-metal interactions, such a comparison of
Elena Levi, Doron Aurbach, Carlo Gatti
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Metal–Metal Exchange Coupling

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Metal or No Metal: That Is the Question!

Angewandte Chemie International Edition, 2011
Michael, Schwarz, Oliver, Reiser
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