Chapter 11 Basic of Coordination Chemistry 11.1 Basic concepts of coordination compounds 11.2 The valence bond theory of coordination compounds 11.3 Crystal Field Theoryof coordination compound 11.4 Stability of coordination compounds $*11.5 Further discussion on coordination compounds
Chapter 11 Basic of Coordination Chemistry §11.2 The valence bond theory of coordination compounds §11.3 Crystal Field Theoryof coordination compound §11.1 Basic concepts of coordination compounds §*11.5 Further discussion on coordination compounds §11.4 Stability of coordination compounds
S 11.1 Basic concepts of coordination compounds 11.1.1 Coordination compounds Defination: A complex is a typical acid-base adduct of a Lewis acid and a lewis base.E.g,[AgNH3)2]+是Lewisi酸Ag+和NH3 的加合物。 A coordination compound or metal complex,has a structure consisting of a central atom or ion (usually metallic),bonded to a surrounding array of molecules or anions (ligands,complexing agents)
11.1.1 Coordination compounds Defination: A complex is a typical acid-base adduct of a Lewis acid and a lewis base. E.g., [Ag(NH3)2]+是Lewis酸Ag+和NH3 的加合物。 §11.1 Basic concepts of coordination compounds A coordination compound or metal complex, has a structure consisting of a central atom or ion (usually metallic), bonded to a surrounding array of molecules or anions (ligands, complexing agents)
Composition of a coordination A Lewis acid,.called形成体(eg,central metal ion): A Lewis base,.called配位体(ligand). Central metal ion(形成体)usually are metals and metal ions,also have few nonmelal .Such as Cu2+,Agt,Fe3+, Fe,Ni,Bm,PV.… Ligand(配位体)in classical coordination chemistry bind to metals,almost exclusively,via their "lone pairs"of electrons residing on the main group atoms of the ligand. Typical ligands are:F-,CI,Br,I,OH-,CN-,H2O, NH3,:C0,H2C=CH2.…
Central metal ion(形成体) usually are metals and metal ions,also have few nonmelal .Such as ：Cu2+，Ag+ ，Fe3+， Fe，Ni，BⅢ，PⅤ …… Ligand(配位体) in classical coordination chemistry bind to metals, almost exclusively, via their “lone pairs” of electrons residing on the main group atoms of the ligand. Typical ligands are：F－, Cl－, Br－, I－, OH－, CN- , H2O, NH3 , :CO, H2C=CH2…… A Lewis acid, called形成体(e.g., central metal ion)； A Lewis base, called 配位体 (ligand). Composition of a coordination
coordinating atom:The atom having bond with the central metal ion. monodentate ligand:There is only one coordination atom in the ligand. Polydentate ligand:The ligand have two or more coordination atoms
coordinating atom：The atom having bond with the central metal ion. monodentate ligand：There is only one coordination atom in the ligand. Polydentate ligand：The ligand have two or more coordination atoms
Example 乙二酸根（草酸根）C,O 乙二胺四乙酸根EDTA(Y4-) OOC-HC CH-co] N-CH,-CH,-N: OOC-H,C CH,-COO
乙二胺四乙酸根 EDTA（Y4－） 乙二酸根（草酸根） 2 C2O4 O O C C O O 2– • • • • COO H C CH OOC N CH CH N COO H C CH OOC 2 2 2 2 2 2 4– • • • • • • • • • • • • Example