High-valency gold complexes with this geometry have been catalyst candidates for enantioselective cyclizations. Ligand substitutions of complexes with this geometry form intermediates that undergo Berry pseudorotation. (-5[1])An addition of methyl iodide to an iridium complex with this geometry is the first step in the Cativa process. Low-spin d8 complexes, which have this (-5[1])geometry, violate the 18-electron rule, (10[1])as exemplified by group 10 complexes such as Zeise’s salt. Compounds with this geometry have D4h point groups. Complexes with this geometry are (10[1])stabilized by (-5[1])the “trans effect,” which impacts the synthesis of (10[1])cisplatin, (10[1])a drug with this geometry. For (10[1])10 points, name this geometry of compounds that have (10[1])four substituents and two lone pairs, (10[1])in which all bond angles are 90 degrees. ■END■ (10[2]0[1])