@article {49098,
	title = {Intertwining of localized (d) and delocalized (π) spins in magnetically frustrated two-dimensional metal-organic frameworks},
	journal = {Inorganic Chemistry},
	volume = {63},
	year = {2024},
	month = {FEB},
	pages = {3675-3681},
	type = {Article},
	abstract = {<p>
	Two-dimensional metal-organic frameworks (2D MOFs) are emerging as a new class of multifunctional materials for diversified applications, although magnetic properties have not been widely explored. The metal ions and organic ligands in some of the 2D MOFs are arranged in the well-known Kagome lattice, leading to geometric spin frustration. Hence, such systems could be the potential candidates to exhibit an exotic quantum spin liquid (QSL) state, as was observed in Cu-3(HHTP)(2) (HHTP = hexahydroxytriphenylene), with no magnetic transition down to 38 mK. Hereto, we have investigated the spin intertwining in a bimetallic 2D MOF system, M-3(HHTP)(2) (M = Cu/Zn)(,) arising from the localized (d-electron) and delocalized (pi-electron) S = 1/2 spins from the Cu(II) ions and the HHTP radicals, respectively. The origin of the spin frustration (down to 5K) was critically examined by varying the metal composition in bimetallic systems, CuxZn3-x(HHTP)(2) (x = 1, 1.5, 2), containing both S = 1/2 and S = 0 spins. Additionally, to gain a deeper understanding, we studied the spin interaction in the pristine Zn-3(HHTP)(2) system containing only S = 0 Zn(II) ions. In view of the quantitative estimate of the localized and delocalized spins, the d-pi spin correlation appears essential in understanding the unusual magnetic and/or other physical properties of such hybrid organic-inorganic 2D crystalline solids</p>
},
	issn = {0020-1669},
	doi = {10.1021/acs.inorgchem.3c03247},
	author = {Ugale, Ajay and Ninawe, Pranay and Jain, Anil and Sangole, Mayur and Mandal, Rimpa and Singh, Kirandeep and Ballav, Nirmalya}
}
@article {49002,
	title = {Robust spin liquidity in 2D metal-organic framework Cu3 (HHTP)2 with S=1/2 kagome lattice},
	journal = {Chemistry- a european journal},
	volume = {30},
	year = {2024},
	month = {JAN },
	type = {Article},
	abstract = {<p>
	On one hand electron or hole doping of quantum spin liquid (QSL) may unlock high-temperature superconductivity and on the other hand it can disrupt the spin liquidity, giving rise to a magnetically ordered ground state. Recently, a 2D MOF, Cu-3(HHTP)(2) (HHTP - 2,3,6,7,10,11-hexahydroxytriphenylene), containing Cu(II) S = 1/2 frustrated spins in the Kagome lattice is emerging as a promising QSL candidate. Herein, we present an elegant in situ redox-chemistry strategy of anchoring Cu-3(HHTP)(2) crystallites onto diamagnetic reduced graphene oxide (rGO) sheets, resulting in the formation of electron-doped Cu-3(HHTP)(2)-rGO composite which exhibited a characteristic semiconducting behavior (5 K to 300 K) with high electrical conductivity of 70 S . m(-1) and a carrier density of similar to 1.1 x 10(18) cm(-3) at 300 K. Remarkably, no magnetic transition in the Cu-3(HHTP)(2)-rGO composite was observed down to 1.5 K endorsing the robust spin liquidity of the 2D MOF Cu-3(HHTP)(2). Specific heat capacity measurements led to the estimation of the residual entropy values of 28 \% and 34 \% of the theoretically expected value for the pristine Cu-3(HHTP)(2) and Cu-3(HHTP)(2)-rGO composite, establishing the presence of strong quantum fluctuations down to 1.5 K (two times smaller than the value of the exchange interaction J).</p>
},
	keywords = {2D Metal-organic Framework, Electron doping, Reduced graphene oxide, Spin Liquid, Spin-frustration},
	issn = {0947-6539},
	doi = {10.1002/chem.202303718},
	author = {Ninawe, Pranay and Jain, Anil and Sangole, Mayur and Anas, Mohd and Ugale, Ajay and Malik, Vivek K. and Yusuf, Seikh M. and Singh, Kirandeep and Ballav, Nirmalya}
}
@article {49265,
	title = {Unprecedented C-F bond cleavage in perfluoronaphthalene during cobaltocene reduction},
	journal = {DALTON TRANSACTIONS},
	volume = {53},
	year = {2024},
	month = {NOV },
	pages = {17789-17793},
	type = {Journal Article},
	issn = {1477-9226},
	doi = {10.1039/d4dt02791d},
	author = {Kundu, Gargi and Pramanik, Debjit and Dash, Soumya Ranjan and Kumar, Ravi and Sangole, Mayur and Tothadi, Srinu and Ghosh, Aryya and Vanka, Kumar and Singh, Kirandeep and Sen, Sakya S.}
}
