51203-49-7Relevant articles and documents
Exploring the Organometallic Route to Molecular Spin Qubits: The [CpTi(cot)] Case
de Camargo, Luana C.,Briganti, Matteo,Santana, Francielli S.,Stinghen, Danilo,Ribeiro, Ronny R.,Nunes, Giovana G.,Soares, Jaísa F.,Salvadori, Enrico,Chiesa, Mario,Benci, Stefano,Torre, Renato,Sorace, Lorenzo,Totti, Federico,Sessoli, Roberta
, p. 2588 - 2593 (2021)
The coherence time of the 17-electron, mixed sandwich complex [CpTi(cot)], (η8-cyclooctatetraene)(η5-cyclopentadienyl)titanium, reaches 34 μs at 4.5 K in a frozen deuterated toluene solution. This is a remarkable coherence time for a highly protonated molecule. The intramolecular distances between the Ti and H atoms provide a good compromise between instantaneous and spin diffusion sources of decoherence. Ab initio calculations at the molecular and crystal packing levels reveal that the characteristic low-energy ring rotations of the sandwich framework do not yield a too detrimental spin-lattice relaxation because of their small spin–phonon coupling. The volatility of [CpTi(cot)] and the accessibility of the semi-occupied, non-bonding d (Formula presented.) orbital make this neutral compound an ideal candidate for single-qubit addressing on surface and quantum sensing in combination with scanning probe microscopy.