Bridging Aromatic/Antiaromatic Units. Recent Advances in Aromaticity and Antiaromaticity in Main‐group and Transition‐metal Clusters From Bonding and Magnetic analyses

2021 ◽  
Author(s):  
Nikolay V. Tkachenko ◽  
Ivan A. Popov ◽  
Maksim Kulichenko ◽  
Nikita Fedik ◽  
Zhong-Ming Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Clusters ◽  
Main Group ◽  
Transition Metal Clusters ◽  
Recent Advances

scholarly journals Mixed main group transition metal clusters: Reactions of [Ru 3 (CO) 10 (μ-dppm)] with Ph 3 SnH

2017 ◽  
Vol 840 ◽  
pp. 47-55 ◽  
Author(s):  
Md. Mehedi M. Khan ◽  
Shishir Ghosh ◽  
Graeme Hogarth ◽  
Derek A. Tocher ◽  
Michael G. Richmond ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Clusters ◽  
Main Group ◽  
Transition Metal Clusters

The Main Group Elements, Fragments, Compounds and Clusters Obey the 4n Rule and Form 4n Series: They are Close relatives to Transition Metal Counterparts via the 14n Linkage

2016 ◽  
Vol 8 (2) ◽  
pp. 94 ◽  
Author(s):  
Enos Masheija Rwantale Kiremire
Keyword(s):  
Transition Metal ◽  
Metal Clusters ◽  
Metal Carbonyl ◽  
Main Group ◽  
Electron Content ◽  
Transition Metal Clusters ◽  
Main Group Elements ◽  
Valence Electrons ◽  
Transition Metal Carbonyls ◽  
Close Relatives

<p>The paper presents numbers which were derived from 4n-based series in a matrix table. The numbers agree precisely with the total number of valence electrons surrounding the respective skeletal elements. The series approach focuses mainly on the number of skeletal elements and their respective number of valence electron content regardless of the origin of the electrons and the type of skeletal elements. For instance, any 6 skeletal elements of transition metal carbonyls surrounded by 86 valence electrons coded as (6,86), series S = 14n+2 normally adopt an octahedral geometry whereas (6,26) series S = 4n+2 for main group elements also tend to adopt an octahedral shape. The transition metal carbonyl cluster series were extensively covered in our previous articles. This paper demonstrates that the main group fragments, clusters and molecules which we normally explain by terms such as valency, valence electrons and octet rule also obey the 4n-based series. The fragments, molecules and clusters of the main group elements correspond well to those of respective transition metal clusters especially the carbonyls if the masking electrons are removed from them. Hence, the series approach is a qualitative method that acts as a unifier of some transition metal clusters with some main group elements clusters.</p>

Organo-transition metal clusters: rational approaches to synthesis, structure, fluxionality, and reactivity

1983 ◽  
Vol 61 (6) ◽  
pp. 1319-1331 ◽  
Author(s):  
Michael J. McGlinchey ◽  
Michael Mlekuz ◽  
Peter Bougeard ◽  
Brian G. Sayer ◽  
Angela Marinetti ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electronic Structures ◽  
Metal Clusters ◽  
High Reactivity ◽  
Main Group ◽  
Polyhedral Surface ◽  
Vacant Site ◽  
Transition Metal Clusters ◽  
Structural Patterns

By using the isolobality principle, it is shown that the electronic structures of the 4- through 9-atom organo-transition metal clusters are closely analogous to the corresponding boranes. This parallelism is extended beyond simple structural similarities and is used to account for the high reactivity and nmr fluxionality of clusters which possess a vacant site on the polyhedral surface. Comparisons are also drawn with main group anionic and cationic clusters. Finally, it is shown that clusters containing gold atoms can, under certain circumstances, also follow the structural patterns of the boranes.

Reversible redox processes in main-group/transition-metal clusters: the [Sb2Co4(CO)10(.mu.-CO)]-/2- couple

1989 ◽  
Vol 111 (7) ◽  
pp. 2726-2727 ◽  
Author(s):  
J. Scott Leigh ◽  
Kenton H. Whitmire ◽  
Kyeong Ae Yee ◽  
Thomas A. Albright
Keyword(s):  
Transition Metal ◽  
Metal Clusters ◽  
Main Group ◽  
Redox Processes ◽  
Transition Metal Clusters ◽  
Reversible Redox
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