Results 141 to 149 of about 11,148 (149)

17-Electron, four-legged piano stool CpMoX2L2 complexes (X  halogen, L  tertiary phosphine). EPR evidence for the existence of a second isomer in solution

Polyhedron, 1992
Abstract Several 17-electron molybdenum(III) complexes of the type CpMoCl2L2 have been generated by either (1) reaction between CpMoCl2 and the appropriate L, (2) reaction between MoCl3(THF)3, the appropriate L and CpTl, and (3) phosphine exchange from CpMoCl2(PPh3)2.
Rinaldo Poli, Beth E. Owens, Steven T. Krueger, Arnold L. Rheingold   +3 more
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Distortions in the legs of four-legged piano-stool structures

Organometallics, 1990
An analysis of existing four-legged piano-stool structures (M(Ar)L 4 , M(pd)L 4 ; Ar=η 6 -arene, pd=η 5 -pentadienyl, L=two-electron-donor ligand) is presented. The dependency of the angle θ between the M-L and the M-Ar or M-pd vectors on the electronic structure and on the π-bonding ability of the ligand L is ...
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Academic work design as a three- or four-legged stool

2021
Tomislav Hernaus, Matej Černe
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Four-legged piano stool molybdenum(II) compounds without carbonyl ligands. 2. Reactions of (.eta.5-C5R5)MoCl(PMe3)3 (R = H, Me) with neutral donors

Organometallics, 1992
Fatima Abugideiri, Malcolm A. Kelland, Rinaldo Poli   +2 more
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Synthesis and structure of tetrakis(benzenethiolato)(methylcyclopentadienyl)tantalum and an EHMO analysis of its distorted four-legged piano-stool structure

Inorganic Chemistry, 1991
Owen J. Curnow, M. David Curtis, Arnold Rheingold, Brian S. Haggerty   +3 more
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Four-legged piano stool molybdenum(II) compounds without carbonyl ligands. 1. Synthesis, properties, and chloride substitution reactions of (.eta.5-C5R5)MoCl(PMe3)3 (R = H, Me) and x-ray crystal structure of [CpMoCl(PMe3)3]+PF6-

Organometallics, 1992
Fatima Abugideiri, Malcolm A. Kelland, Rinaldo Poli, Arnold L. Rheingold   +3 more
openaire   +1 more source

The four-legged stool. Community participation, community medicine, and the community hospital.

JAMA, 1972
S, Reichman, H, Machaver
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Balancing on a four-legged stool.

The Journal of the Arkansas Medical Society, 1997
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Four-Legged Stool or Three-Stone Cooking Stove? : Reconsidering Methodology for African Biblical Hermeneutics

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