CHEM 1120 1nd Edition Lecture 23Outline of Last Lecture I. Complexesa. Ligandsb. Coordination Complexesc. Chelate ligandsd. Kinetic Labilitye. NomenclatureOutline of Current Lecture I. Isomerisma. Structural isomersi. Coordination-sphereii. Linkageb. Stereoisomersi. Geometricii. OpticalCurrent LectureI. Isomerisma. Isomers: same formula, different properties and arrangements of atoms i. Structural isomers: different bonds1. Coordination-sphere isomers: different ligands occupy the coordination sphere, but overall formula is the samea. Ex. [Cr(H2O)6]Cl3 and [Cr(H2O)5Cl]Cl2 . H2Ob. Complex with empirical formula CrCl3O6H12 exists as different complexesc. Different from what’s inside and outside brackets2. Linkage isomersa. Ligand is bound to the metal by a different atomThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.ii. Stereoisomers: same bonds, different arrangements1. Geometric isomersa. Cis: close together, trans: across from each other (square planar and octahedral complexes), tetrahedrals cannot have thisb. Facial: all across from each other, meridional: 2 are trans2. Optical isomersa. Take mirror image and lay it on top of original, not the same3. Stereoisomers: enantiomersa. D-dextrorotatory (right handed)b. L- Levorotatory (left
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