Ions and Coordination Compounds

Chromium Glucose tolerance factor Utilization of glucose 

Iron Hemoglobin and myoglobin C3rtochrome c Catalase Transport and storage of oxygen Cell energetics Decomposition of hydrogen peroxide 

Cobalt Cobalamin (vitamin 6x2) Development of red blood cells 

CoppCT Ceruloplasmin C3rtochrome oxidase Synthesis of hemoglobin Cell energetics 

Zinc Carbonic anhydrase Carbox3rpeptidase A (pancreatic juice) Alcohol dehydrogenase Elimination of carbon dioxide Protein digestion Oxidation of ethanol 

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Complex ions. Ligands are generally electron pair donors (Lewis bases). Important ligands are NH3, CN", and OH". Ligands bond to a central atom that is usually the positive ion of a transition metal, forming complex ions and coordination compounds. 

Adsorption and Electrode Reactions of Inorganic Ions and Coordination Compounds of Metal Ions... 

Among the most significant developments in the field of catalysis in recent years have been the discovery and elucidation of various new, and often novel, catalytic reactions of transition metal ions and coordination compounds 13, 34). Examples of such reactions are the hydrogenation of olefins catalyzed by complexes of ruthenium (36), rhodium (61), cobalt (52), platinum (3, 26, 81), and other metals the hydroformylation of olefins catalyzed by complexes of cobalt or rhodium (Oxo process) (6, 46, 62) the dimerization of ethylene (i, 23) and polymerization of dienes (15, 64, 65) catalyzed by complexes of rhodium double-bond migration in olefins catalyzed by complexes of rhodium (24,42), palladium (42), cobalt (67), platinum (3, 5, 26, 81), and other metals (27) the oxidation of olefins to aldehydes, ketones, and vinyl esters, catalyzed by palladium chloride (Wacker process) (47, 48, 49,... 

We wiii iook at the generai properties of transition metais in the first section of the chapter in the second section we wiii investigate the chemistry of two transition eiements, chromium and copper. The remaining sections of the chapter wiii cover the structure, naming, and bonding of compiex ions and coordination compounds. 

Sometimes, too, chemists include the two rows of elements at the bottom of the periodic table with the transition elements. These two rows, often referred to as the inner-transition elements, have partially filled/subshells in common oxidation states. The elements in the first row are called the lanthanides, or rare earths, and the elements in the second row are called the actinides. Figure 23.1 shows the divisions of the transition elements. The B columns of transition elements, as well as the inner-transition elements, frequently form complex ions and coordination compounds. 

Coordination compound A Complex Ion and Coordination Compound A coordination compound contains a complex ion and corresponding counterions. The complex ion contains a central metal atom coordinated to several ligands. The compound shown here is [Co(NH3)6]Cl3. 

Write the name of complex ions and coordination compounds. 

Section 19.2 New section on naming complex ions and coordination compounds (expanded Appendix 5 in 6e)... 

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