The centrosymmetric structure of bis(triphenyltin) oxalate contains essentially four-coordinated tin and monodentate carboxylate moieties despite a Mossbauer quadrupole splitting of 2.8 mm s(-1) and a Sn-119 NMR chemical shift of -503 ppm. Copyright (C) 2003 John Wiley Sons, Ltd.
Diop, L., Mahieu, B., Mahon, M., Molloy, K., & Okio, K. (2003). Bis(triphenyltin) oxalate. Applied Organometallic Chemistry, 17(11), 881-882. https://doi.org/10.1002/aoc.536 (Original work published 2003)