PPT-GEOMETRICAL ISOMERISM IN OCTAHEDRAL COMPLEXES

Mary Sarah Cherian Associate Professor Department of Chemistry Mar Thoma College Tiruvalla GEOMETRICAL ISOMERISM Geometrical isomerism is a type of isomerism arises in heteroleptic complexes due to different possible geometric arrangements of the . More Complex Molecules. Chapter 5. Friday, . October . 16, . 2015. 2s:. A. 1. ’. E’. (. y. ). E’. (. x. ). BF. 3. - Projection Operator Method. 2p. y. :. A. 1. ’. E’. (. y. ). E’. (. x. ). The interactions of the d orbitals with their surrounding chemical environment (ligands) influences their energy levels, and this coupled with the variable number of electrons (and incomplete filling of the d block) imparts on transition metals a unique, rich, and diverse chemistry. . Some transitions are not allowed does not mean that such a transition will never . occur, but that it is less likely and that the . intensity (molar absorption coefficient) . of . such an absorption band is very low. Whether transitions are allowed or forbidden, . 1. Do the compounds have the same connectivity?. 2. Stereo Isomerism. Stereo isomers : . They have the same atoms, same sets of bonds, but differ in the relative orientation of these bonds. . . Geometrical Isomers:. Coordination Complexes. d. -block. elements a.k.a. . transition metals. d. -block elements are: . all . metals. all have . partially filled . d. subshells. exhibit horizontal & vertical . similarities. CONTENTS. Introduction. Coordination . Compounds. Concept of Ligands. Werner’s. . Theory. Effective Atomic Number. Isomerism . in Coordination. . Compounds. INTRODUCTION. Coordination compounds are the inorganic salts formed by the combination of two or more simple compounds in stoichiometric ratio.. d. n. Configurations. Configuration. Russel. -Saunders Terms. d. 0. , d. 10. 1. S. d. 1. , d. 9. 2. D. d. 2. , d. 8. 3. F. , . 3. P, . 1. G, . 1. D, . 1. S. d. 3. , d. 7. 4. F. , . 4. P, . 2. H, . 2. The term isomerism refers to compounds that have the same molecular formula but different arrangement of atoms.. Structural isomerism- isomers in which atoms and functional groups are attached in different ways. . Chapter 5. Friday, . October . 16, . 2015. 2s:. A. 1. ’. E’. (. y. ). E’. (. x. ). BF. 3. - Projection Operator Method. 2p. y. :. A. 1. ’. E’. (. y. ). E’. (. x. ). 2p. x. :. A. 2. ’. E’. Kimia . Anorganik. II. COMPOUNDS. NOMENCLATURE. [. Co(NH. 3. ). 3. (NO. 2. ). 3. ] . Triamintrinitrokobalt (III). [Pt(NH. 3. ). 2. Cl. 2. ] . Diamindikloroplatina (II). [Ni(DMG). 2. ]. Bisdimetilglioksimatonikel (II). Nucleophiles. under Physiological Conditions . Enisa. Selimović. 1. , Andrei V. Komolkin. 2. , Andrei V. Egorov. 2. , and . Tanja. Soldatović. 1.  * . 1. Department of Chemical-Technological Science, State University of Novi . Atul. Kumar Singh. Assistant Professor. Department of Chemistry . M. L. . Arya. College, . Kasba. Purnia. -854330. India. Coordination isomerism . This type of isomerism arises due to . different placement of . Introduction. Coordination . Compounds. Concept of Ligands. Werner’s. . Theory. Effective Atomic Number. Isomerism . in Coordination. . Compounds. INTRODUCTION. Coordination compounds are the inorganic salts formed by the combination of two or more simple compounds in stoichiometric ratio.. Two or more different compounds having the same molecular formula are called isomers and the phenomenon is called isomerism. Isomerism arises due to specific spatial dispositions of the atoms in a molecule. Due to covalence of M-L bonds, many types of isomers occur in co-ordination compounds. However, compared to organic compounds, relatively few inorganic compounds exhibit isomerism. .