Coordination chemistry of novel scorpionate ligands based on 3-cyclohexylpyrazole and 3-cyclohexyl-4-bromopyrazole

Inorganic Chemistry
Swiatoslaw TrofimenkoLouise M Liable Sands

Abstract

The ligands [hydrotris(3-cyclohexylpyrazol-1-yl)borate, [Tp(Cy)](-), tetrakis(3-cyclohexylpyrazol-1-yl)borate, [pz(o)Tp(Cy)](-), and hydrotris(3-cyclohexyl-4-bromopyrazol-1-yl)borate, [Tp(Cy,4Br)](-) were synthesized and characterized as their Tl(I) derivatives. They were converted to a variety of tetrahedral LMX and octahedral LML' complexes, as well as to the dinuclear nickel carbonate complex [Ni(Tp(Cy))](2)(CO(3)), 4, and the compound Ni[Tp(Cy,4Br)][pz(Cy,4Br)](3)(H)(2), 5. The structures of Co[Tp(Cy)]Cl, 1, Co[Tp(Cy,4Br)]Cl, 2, Co[Tp(Cy,4Br)]NCS, 3, [Ni(Tp(Cy))](2)(CO(3)), 4, Ni[Tp(Cy,4Br)][pz(Cy,4Br)](3)(H)(2), 5, and Mo[Tp(Cy)](CO)(2)(eta(3)-methallyl), 6, were determined by X-ray crystallography. The structures of paramagnetic heteroleptic complexes Co[Tp(Cy)][Tp], Co[Tp(Cy)][Tp], Co[Tp(Cy,4Br)][Tp], and Co[Tp(Cy,4Br)][Tp] were established by NMR. The homoleptic compounds Co[Tp(Cy)](2) and Co[Tp(Cy,4Br)](2) rearrange thermally to Co[Tp(Cy)](2) and to Co[Tp((Cy,4Br))](2), respectively, containing one 5-cyclohexyl group/ligand.

References

Sep 21, 2002·Chemical Communications : Chem Comm·M M Díaz-RequejoP J Pérez

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Citations

May 16, 2012·Inorganic Chemistry·Bruce R McGarvey, Joshua Telser
Sep 1, 2011·Inorganic Chemistry·Christopher J SnyderCharles H Winter
Jun 19, 2012·Inorganic Chemistry·Tapash DebMichael P Jensen
Oct 24, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Maura PelleiCarlo Santini
Feb 25, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Jeffrey P WikstromElena V Rybak-Akimova
Aug 14, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Elena A MikhalyovaAllen D Hunter
Nov 5, 2016·Acta Crystallographica. Section C, Structural Chemistry·Elena A MikhalyovaVitaly V Pavlishchuk
May 11, 2004·Inorganic Chemistry·Faith E Jacobsen, Seth M Cohen
Sep 12, 2007·Inorganic Chemistry·Ningfeng ZhaoDavid M Eichhorn
Oct 2, 2002·Inorganic Chemistry·David T Puerta, Seth M Cohen
Dec 2, 2020·Inorganic Chemistry·Anders ReinholdtDaniel J Mindiola

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