Hence, though 1-py and 1-TPPO possess the smallest CQ values within the studied molecular analogs, the dominance of CQ over CSA enables fitting of quadrupolar parameters while neglecting additional CSA parameters. For 1-py and 1-TPPO, further analysis focuses on extracted values for δiso, CQ and η obtained when fitting EFG and δiso while setting CSA parameters to zero. For 1-py, this yields a δiso of 158 ppm, a CQ of 24.2 MHz, with an asymmetry parameter (η) of 0.08 (Table ). Thus, δiso falls into the range expected for a tetracoordinate Ga species (vide infra). The low value of η indicates a high axial symmetry (i.e. VYY ≈ VXX), while the large CQ is consistent with the presence of a large principal component of the EFG tensor (VZZ) -consistent with the obtained crystal structure and the non-equivalence of the ligands found in the first coordination sphere (Py vs -OSi(OtBu)3, vide supra).