AI Article Synopsis
- - Hetero-bimetallic dinitrogen complexes are being explored for their ability to activate nonpolar nitrogen gas, which could have significant implications in various chemical processes.
- - The study focuses on the synthesis and characterization of three new hetero-multimetallic dinitrogen complexes involving chromium, vanadium, and titanium, created through a process called transmetalation.
- - X-ray and Raman spectroscopic analyses reveal that these complexes have unique structural properties, including heterodinuclear and heterotrinuclear configurations, which affect the N-N bonding characteristics compared to free nitrogen.
Article Abstract
In the domain of N activation, hetero-bimetallic dinitrogen complexes are garnering substantial interest due to their potential to induce polarization in nonpolar N gas. Herein, we present the syntheses and characterizations of three novel hetero-multimetallic dinitrogen complexes: Cp*Cr(depe)NV(depe)[O, P, O] , Cp*Cr(depe)NV(depe)[O, P, O] , and [Cp*Cr(depe)N]Ti[O, P, O] . These complexes were synthesized via a transmetalation process involving the treatment of [Cr-N] complex with vanadium and titanium chloride complexes bearing alkyl or aryl substituted bis(-hydroxyphenyl)-phenyl phosphine [O, P, O] ligand (alkyl = methyl, aryl = 2,4,6-tri-isopropylbenzene). X-ray analysis shows that complexes and exhibit heterodinuclear structures, while complex exhibits a heterotrinuclear core with two N ligands concurrently coordinated to two chromium and one titanium atoms. Raman spectroscopic data show that the N-N stretching vibration of the N moiety is clearly downshifted relative to free N and to mononuclear [Cr-N] complex .
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| http://dx.doi.org/10.1021/acs.inorgchem.3c02944 | DOI Listing |
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