@article {48769,
	title = {Taming the parent oxoborane},
	journal = {Chemical Science},
	volume = {14},
	year = {2023},
	month = {JUN},
	pages = {5894-5898},
	type = {Article},
	abstract = {<p>
	Despite recent advancements in the chemistry of multiply bound boron compounds, the laboratory isolation of the parent oxoborane moiety, HBO has long remained an unsolved and well-recognized challenge. The reaction of 6-SIDipp(.)BH3 [6-SIDipp = 1,3-di(2,6-diisopropylphenyl)tetrahydropyrimidine2-ylidene] with GaCl3 afforded an unusual boron-gallium 3c-2e compound (1). The addition of water to 1 resulted in the release of H-2 and the formation of a rare acid stabilized neutral parent oxoborane, LB(H)]O (2). Crystallographic and density functional theory (DFT) analyses support the presence of a terminal B=O double bond. Subsequent addition of another equivalent of water molecule led to hydrolysis of the B-H bond to the B-OH bond, but the {\textquoteleft}B=O{\textquoteright} moiety remained intact, resulting in the formation of the hydroxy oxoborane compound (3), which can be classified as a monomeric form of metaboric acid.</p>
},
	issn = {2041-6520},
	doi = {10.1039/d3sc01544k},
	author = {Kundu, Gargi and Amrutha, P. R. and Raj, K. Vipin and Tothadi, Srinu and Vanka, Kumar and Sen, Sakya S.}
}
@article {49027,
	title = {Tridentate NacNac tames T-shaped nickel(I) radical},
	journal = {Chemistry- a european journal},
	volume = {30},
	year = {2024},
	month = {FEB},
	type = {Article},
	abstract = {<p>
	The reaction of a nickel(II) chloride complex containing a tridentate beta-diketiminato ligand with a picolyl group [2,6-iPr2-C6H3NC(Me)CHC(Me)NH(CH2py)]Ni(II)Cl (1)] with KSi(SiMe3)3 conveniently afforded a nickel(I) radical with a T-shaped geometry (2). The compound{\textquoteright}s metalloradical nature was confirmed through electron paramagnetic resonance (EPR) studies and its reaction with TEMPO, resulting in the formation of a highly unusual three-membered nickeloxaziridine complex (3). When reacted with disulfide and diselenide, the S-S and Se-Se bonds were cleaved, and a coupled product was formed through carbon atom of the pyridine-imine group. The nickel(I) radical activates dihydrogen at room temperature and atmospheric pressure to give the monomeric nickel hydride. A thermally stable, T-shaped, nickel(I) radical was straightforward obtained by reduction of a tridentate nacnac nickel(II) chloride with KSi(TMS)3. The metalloradical character of the compound was demonstrated by the formation of a highly unusual nickeloxaziridine complex upon addition of TEMPO. The Ni(I) species displays a rich chemistry towards activation S-S, and Se-Se bond leading to unusual C-C coupled product as well as dihydrogen activation at room temperature and atmospheric pressure to generate monomeric nickel hydride.+image</p>
},
	keywords = {C-C Bond formation, Hydrogen Activation, Metalloradical, Nickel, Tridentate nacnac},
	issn = {0947-6539},
	doi = {10.1002/chem.202303957},
	author = {Pahar, Sanjukta and Sharma, Vishal and Raj, K. Vipin and Sangole, Mayur P. and George, Christy P. and Singh, Kirandeep and Vanka, Kumar and Gonnade, Rajesh G. and Sen, Sakya S.}
}
