Structural characterization of the three rhenium complexes [HRe(CO)4]n (n = 2,3,4,), including a rare example of a square arrangement of metal atoms

1990 ◽  
Vol 112 (25) ◽  
pp. 9395-9397 ◽  
Author(s):  
Norberto Masciocchi ◽  
Angelo Sironi ◽  
Giuseppe D'Alfonso
Keyword(s):  
Structural Characterization ◽  
Rhenium Complexes ◽  
Metal Atoms

scholarly journals Crystallographic and structural characterization of heterometallic platinum compounds Part VII. Heterohepta- and heterooctanuclear clusters

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Milan Melnik ◽  
Peter Mikuš ◽  
Clive E. Holloway
Keyword(s):  
Structural Characterization ◽  
Structural Parameters ◽  
Bond Distance ◽  
Point Of View ◽  
Platinum Compounds ◽  
Metal Atoms ◽  
Platinum Clusters ◽  
Structural Point

AbstractThis review classifies and analyzes over fifty heterohepta- and heterooctanuclear platinum clusters. There are eight types of metal combinations in heteroheptanuclear: Pt6M, Pt5M2, Pt4M3, Pt3M4, Pt2M5, PtM6, Pt3Hg2Ru2 and Pt2Os3Fe2. The seven metal atoms are in a wide variety of arrangements, with the most common being one in which the central M atom (mostly M(I)) is sandwiched by two M3 triangles. Another arrangement often found is an octahedron of M6 atoms asymmetrically capped by an M atom. The shortest Pt-M bond distances (non-transition and transition) are 2.326(1) Å (M = Ga) and 2.537(6) Å (M = Fe). The shortest Pt-Pt bond distance is 2.576(2) Å.In heterooctanuclear platinum clusters there are eight types of metal combinations: Pt6M2, Pt4M4, Pt3Ru5, Pt2M6, PtM7, Pt2W4Ni2, PtAu6Hg and PtAu5Hg2. From a structural point of view, the clusters are complex with bicapped octahedrons of eight metal atoms prevailing. The shortest Pt-M bond distances (non-transition and transition) are 2.651(3) Å (M = Hg) and 2.624(1) Å (M = Os). The shortest Pt-Pt bond distance is 2.622(1) Å. These values are somewhat longer than those in the heteroheptanuclear clusters. Several relationships between the structural parameters were found, and are discussed and compared with the smaller heterometallic platinum clusters

A Methyl Group Bridging on Three Metal Atoms. Solid-State and Solution Structural Characterization of the [Re3(μ-H)3(μ3-CH3)(CO)9]-Anion

1999 ◽  
Vol 121 (10) ◽  
pp. 2307-2308 ◽  
Author(s):  
T. Beringhelli ◽  
G. D'Alfonso ◽  
M. Panigati ◽  
F. Porta ◽  
P. Mercandelli ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Characterization ◽  
Methyl Group ◽  
Metal Atoms

scholarly journals Crystallographic and structural characterization of heterometallic platinum complexes Part V. Heteropentanuclear complexes

2014 ◽  
Vol 12 (3) ◽  
pp. 283-306 ◽  
Author(s):  
Milan Melník ◽  
Peter Mikuš ◽  
Clive Holloway
Keyword(s):  
Structural Characterization ◽  
Structural Parameters ◽  
Bond Distance ◽  
Platinum Complexes ◽  
Trigonal Bipyramidal ◽  
Metal Atoms ◽  
Independent Molecules

AbstractThis review classifies and analyzes over eighty heteropentanuclear Pt complexes. There are eight types of metal combinations: Pt4M, Pt3M2, Pt2M3, PtM4, Pt3MM′, Pt2M2M′, PtM2M′2 and PtM3M′. The five metal atoms are in a wide variety of arrangements: trigonal-bipyramidal (most common), square-pyramidal, spike-triangular, butterfly, cubane, linear and one unique. Platinum bonds to a variety of triad partner metal atoms, soft, through borderline to hard. The shortest Pt-M bond distances for non-transition and transition M are 2.406(4) Å (M = Ge) and 2.30(1) Å (M = Co). The shortest Pt-Pt bond distance is 2.580(1) Å. Several relationships between the structural parameters were found and are discussed. Several complexes exist in two isomeric forms and others contain two crystallographically independent molecules. Both the isomers as well as independent molecules are examples of distortion isomerism.

Synthesis and structural characterization of technetium and rhenium complexes containing derivatized amino acids

1998 ◽  
pp. 1453-1460 ◽  
Author(s):  
Michela Cattabriga ◽  
Andrea Marchi ◽  
Lorenza Marvelli ◽  
Roberto Rossi ◽  
Gianni Vertuani ◽  
...  
Keyword(s):  
Amino Acids ◽  
Structural Characterization ◽  
Rhenium Complexes

Technetium and Rhenium Complexes with Thioether Ligands, 5. Synthesis and Structural Characterization of Neutral Oxorhenium(V) Complexes with Tridentate Dithioethers

1997 ◽  
Vol 130 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Hans-Jürgen Pietzsch ◽  
Martina Reisgys ◽  
Hartmut Spies ◽  
Bernd Johannse ◽  
Peter Leibnitz
Keyword(s):  
Structural Characterization ◽  
Rhenium Complexes

scholarly journals Crystallographic and structural characterization of heterometallic platinum compounds part IV: heterotetranuclear clusters

2013 ◽  
Vol 11 (12) ◽  
pp. 1902-1953 ◽  
Author(s):  
Milan Melník ◽  
Peter Mikuš ◽  
Clive Holloway
Keyword(s):  
Structural Characterization ◽  
Structural Parameters ◽  
Platinum Compounds ◽  
Metal Atoms ◽  
Platinum Clusters

AbstractThis review includes over two hundred heterotetranuclear platinum clusters. The clusters are of the compositions Pt3M, Pt3M2, PtM3, Pt′2MM′, PtM2M′ and PtMM′M”. There are twenty five different M atoms (transition and non-transition) as a partner(s) of platinum. The four metal atoms are found in a tetrahedral, planar-rhombohedral, butterfly, spited-triangular, cubane, eight — and oligo-membered rings and a unique structures. There is wide variety of the ligands from uni to- undecadentate, with the most common P and C donor sites. The shortest Pt-M (transition) versus Pt-M (non-transition) bond distances are 2.4833(8)Å (M=Pd) vs. 2.4365(5)Å (Ge). Several relationships between the various structural parameters were found and are discussed.

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