scholarly journals Factors Controlling Oxophilicity and Carbophilicity of Transition Metals and Main Group Metals

Author(s):  
Gbolade O. Kayode ◽  
Matthew M. Montemore
2021 ◽  
Vol 9 (39) ◽  
pp. 22325-22333
Author(s):  
Gbolade O. Kayode ◽  
Matthew M. Montemore

Adsorption energies and formation energies across both transition metals and main group metals can be predicted with a linear model that includes metal s-adsorbate interactions, metal d-adsorbate interactions, and ionic interactions.


Inorganics ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 115
Author(s):  
Xuemei Yang ◽  
Allen Lunsford ◽  
Marcetta Y. Darensbourg

Tetradentate N2S2 ligands (such as bismercaptoethanediazacycloheptane in this study) have seen extensive use in combination with transition metals. Well-oriented N2S2 binding sites are ideal for d8 transition metals with square planar preferences, especially NiII, but also as a square pyramidal base for those metals with pentacoordinate preferences, such as [V≡O]2+, [Fe(NO)]2+, and [Co(NO)]2+. Further reactivity at the thiolate sulfurs generates diverse bi, tri, and tetra/heterometallic compounds. Few N2S2 ligands have been explored to investigate the possibility of binding to main group metals, especially group III (MIII) metals, and their utility as synthons for main group/transition metal bimetallic complexes. To open up this area of chemistry, we synthesized three new five-coordinate main group XMN2S2 complexes with methyl as the fifth binding ligand for M = Al, and chloride for M = Ga and In. The seven-membered diazacycle, dach, was engaged as a rigid stabilized connector between the terminal thiolate sulfurs. The pentacoordinate XMN2S2 complexes were characterized by 1H-NMR, 13C-NMR, +ESI-Mass spectra, and X-ray diffraction. Their stabilities and reactivities were probed by adding NiII sources and W(CO)5(THF). The former replaces the main group metals in all cases in the N2S2 coordination environment, demonstrating the weak coordinate bonds of MIII–N/S. The reaction of XMN2S2 (XM = ClGaIII or ClInIII) with the labile ligand W(0) complex W(CO)5(THF) resulted in Ga/In–W bimetallic complexes with a thiolate S-bridge. The synthesis of XMN2S2 complexes provide examples of MIII–S coordination, especially Al–S, which is relatively rare. The bimetallic Ga/In–S–W complex formation indicates that the nucleophilic ability of sulfur is retained in MIII–S–R, resulting in the ability of main group MIII–N2S2 complexes to serve as metalloligands.


2017 ◽  
Vol 8 (6) ◽  
pp. 4465-4474 ◽  
Author(s):  
Serge Ruccolo ◽  
Michael Rauch ◽  
Gerard Parkin

The tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl ligand, [TismPriBenz], has been employed to form carbatrane compounds of both the main group metals and transition metals.


1994 ◽  
Vol 363 ◽  
Author(s):  
Roy G. Gordon ◽  
John Thornton ◽  
Feng Chen

AbstractHydropyridine is introduced as a new ligand for use in constructing precursors for chemical vapor deposition. Detachment of hydropyridine occurs by a low-temperature reaction leaving hydrogen in place of the hydropyridine, and a very stable byproduct, pyridine vapor. Hydropyridine ligands can be attached to a variety of elements, including main group metals, such as aluminum and antimony, transition metals, such as titanium and tantalum, semiconductors such as silicon, and nonmetals such as phosphorus and arsenic.


Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 58
Author(s):  
Sylwia Kostera ◽  
Maurizio Peruzzini ◽  
Luca Gonsalvi

The use of CO2 as a C1 building block for chemical synthesis is receiving growing attention, due to the potential of this simple molecule as an abundant and cheap renewable feedstock. Among the possible reductants used in the literature to bring about CO2 reduction to C1 derivatives, hydroboranes have found various applications, in the presence of suitable homogenous catalysts. The current minireview article summarizes the main results obtained since 2016 in the synthetic design of main group, first and second row transition metals for use as catalysts for CO2 hydroboration.


Sign in / Sign up

Export Citation Format

Share Document