Chelate: a polydentate ligand, when coordinated at two or more points to a central ion, forms a ring structure such as illustrated by the ethylenediamine complex of cobalt above. This type of complex is called a chelate.
The Coordination Complex 配位化合物
Notes:
cathode [‘kæθəʊd] 阴极 cathodic [kə‘θɔdik] 阴极的 cation [‘kætaiən] 阳离子 cationic [‘kætaiɔnik] 阳离子的 anode [‘ænəʊd] 阳极 anodic [ə’nɔdik] 阳极的 anion [‘ænaiən] 阴离子 anionic [‘ænaiɔnik] 阴离子的 Nonionic [‘nɔnaiɔnik] 非离子的
[Ag(NH3)2]Cl
Diamminesilver(I) chloride
K4[Fe(CN)6]
Potassium hexacyanoferrate(II)
[Co(NH3)3(NO2)3]0 Triamminetrinitrocobalt(III)
[Cu(NH3)4]SO4 Tetramminecopper(II) sulfate
methylamine: methyl-, amine (甲胺） Ethylenediamine: ethyl-, -ene, di-, amine (乙二胺）
Naming the coordination compounds
1. Cations are named first, anions last.
ammonium: NH4+ 铵
The univalent chemical ion composed of N and H, derived from ammonia, whose compounds chemically resemble the alkali metals.
ammine[’ æ mi:n]: M(NH3)x y+ 氨络合物
either---or---: 要么---要么---.
• The first four compounds are saltlike substances in which either the cation or anion is complex. Both---and--- 两个都---
• The fifth compound contains both complex cation and complex anion in solution and in the solid.
2. Naming negative ligands with the alphabetic order
3. Using Roman numerals in parentheses to specify the oxidation number of metals (ions)
4. When a complex ion is negative, the name of the central element has –ate appended.
N
CH2 CH2
N
N
N
CH2 CH2
Co
CH2
CH2
N
N Co(En)3: cobalt triethylenediamine
ammonia: NH3 氨，氨水
A colorless, pungent gas, extensively used to manufacture fertilizers and a wide variety of nitrogen-containing organic and inorganic chemicals.
any of a class of inorganic coordination compounds of ammonia and a metallic salt. ---铜氨离子
amine[’æ min]: R3N 胺
any of a group of organic compounds of nitrogen, such as ethylamine, C2H5NH2, that may be considered ammonia derivatives in which one or more hydrogen atoms have been replaced by a hydrocarbon radical.
Using the affixes –ide, -ate, mono-, di-, tri-, tetra-, etc.
K[BF4]
Potassium tetrafluoroborate
[Co(H2O)2(NH3)2(CO3)]NO3 配体按照英文拼写的字母顺序排列
Diamminediaquacarbonato cobalt(III) nitrate
5. Neutral complexes are named as if they were cations.
6. Uncoordinated positive ion is named finally.
Principle: Giving its name regarding it as a salt.
dentate: toothed; edged with toothlike projections [ uni-; bi-(di-); tri-; tetra-; hexa-;]~ dentate
configuration: arrangement of parts or elements; the structural arrangement of atoms in a compound or ms Chloro Fluro Cyano Nitro Acetato Carbonato Ammine Bromo Hydroxo Nitrato Nitroso Oxalato Aqua(aquo)
Words and Phrases: in stepwise fashion: in a gradual progression as if step by step primarily: at first; originally; chiefly; mainly
Names for Some ligands
Ions ClFCNNO2CH3COOCO32NH3 BrOHNO3-NO2 C2O42H2O
Compounds Chloride Fluride Cyanide Nitrite Acetate Carbonate Ammonia Bromide Hydroxide Nitrate