title: 1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions.
abstract: The authors report on conductivity studies carried out on lithium solvated electron solutions (LiSES) prepared using two types of polyaromatic hydrocarbons (PAH), namely 1,3,5-triphenylbenzene and corannulene, as electron receptors. The solid PAHs were first dissolved in tetrahydrofuran (THF) to form a solution. Metallic lithium was then dissolved into these PAH/THF solutions to yield either blue or greenish blue solutions, colors which are indicative of the presence of solvated electrons. Conductivity measurements at ambient temperature carried out on 1,3,5-triphenylbenzene-based LiSES, denoted by LixTPB(THF)24.7 (x = 1, 2, 3, 4), showed an increase of conductivity with increase of Li:PAH ratio from x = 1 to 2. However, the conductivity gradually decreased upon further increasing the ratio. Indeed the conductivity of LixTPB(THF)24.7 for x = 4 is even lower than for x = 1. Such behavior is similar to that of the previously reported LiSES prepared from biphenyl and naphthalene. Conductivity versus temperature measurements on corannulene-based LiSES, denoted by LixCor(THF)247 (x = 1, 2, 3, 4, 5), showed linear relationships with negative slopes, indicating a metallic behavior similar to biphenyl and naphthalene-based LiSES.
authors: Energy Research Institute (ERI@N), Nanyang Technological University; School of Materials Science and Engineering, Nanyang Technological University.
authors: Kim Seng
authors: KS
authors: Tan
authors: School of Materials Science and Engineering, Nanyang Technological University.
authors: Andrey V
authors: AV
authors: Lunchev
authors: School of Materials Science and Engineering, Nanyang Technological University; School of Physical and Mathematical Sciences, Nanyang Technological University.
authors: Mihaiela C
authors: MC
authors: Stuparu
authors: School of Materials Science and Engineering, Nanyang Technological University.
authors: Andrew C
authors: AC
authors: Grimsdale
authors: Energy Research Institute (ERI@N), Nanyang Technological University; School of Materials Science and Engineering, Nanyang Technological University; rachid@pmail.ntu.edu.sg; rachid@ntu.edu.sg.
authors: Rachid
authors: R
authors: Yazami
mesh_terms: D001555:Benzene Derivatives; D004583:Electrons; D008094:Lithium
chemical_list: D001555:Benzene Derivatives; D008094:Lithium