CHEM: CORRDINATION COMPOUNDS
What is the charge for iron in the complex ion Fe(CN)64-?
+2
What is charge on cobalt in the complex ion [Co(NH3)6]SO4?`
+2 The charge on cobalt in the complex ion [Co(NH3)6]SO4 is +2. The charge on the metal in the complex compound is determined by the charges on the ligands and any counter ions. The ammine ligand (NH3) is neutral, so only the counter ions will determine the charge. Sulfate (SO42-) has a −2 charge and the only source of negative charge in the compound, so the charge on cobalt must be +2.
What is the charge on chromium in [Cr(NH3)3Br3]?
+3
What is the formula for the compound bis(ethylenediamine)dinitroiron(IV) sulfate?
[Fe(en)2(NO2)2]SO4
What is the formula for the compound tris(ethylenediamine)manganese(II) nitrate?
[Mn(en)3](NO3)2
What is the formula for the ion diamminedichlorodinitronickelate(II)?
[Ni(NH3)2Cl2(NO2)2]2-
What is the formula for the compound tetraamminezinc(II) iodide?
[Zn(NH3)4]I2
What is the name for the compound with the formula Mg[Pt(CO)2(ox)2]?
magnesium dicarbonylbis(oxalato)platinate(II)
What is the formula for the compound aluminum tetracyanonickelate(II)?
Al2[Ni(CN)4]3
Which ligand is neutral?
Ammine
What is the name for the compound with the formula [Pt(CO)3H2O]Br2?
Aquatricarbonylplatinum(II) bromide
Name the compound with the formula [Zn(en)2]SO4.
Bis(ethylenediamine)zinc(II) sulfate 1. Identify the cation and anion. Cation: [Zn(en)2]2+ Anion: SO42- 2. Name each ligand and list them in alphabetical order. en: ethylenediamine 3. Use prefixes to indicate the number of each ligand and write them in alphabetical order. bis(ethylenediamine) 5. Name the metal ion. zinc(II) 6. Write the complete name of the coordination compound. bis(ethylenediamine)zinc(II) sulfate
What is the formula for the ligand known as carbonyl?
CO
What is the name for the ligand with the formula OCN¯?
Cyanato
What is the name for the complex ion [Fe(NO2)4(H2O)2]2-?
Diaquatetranitroferrate(II) ion
Which ligand can act as a bidentate ligand?
Ethylenediamine can act as a bidentate ligand because there are two nitrogen atoms, each with a lone pair of electrons, as shown below. Ethylenediaminetetraacetate is a polydentate (4) ligand, while nitrito and cyanato are monodentate ligands.
How is iron named in a complex anion?
Ferrate
What is the name for the compound [Cr(NH3)6][Co(CN)6]?
Hexaamminechromium(III) hexacyanocobaltate(III)
What is the name for the compound with the formula [Co(NH3)6]I3?
Hexaamminecobalt(III) iodide
What is the name of the ion with the formula [PtBr6]4-?
Hexabromoplatinate(II) ion
What is the formula for the compound sodium hexabromoaluminate(III)?
Na3[AlBr6]
What is the formula for the compound sodium dicyanobis(oxalato)ferrate(III)?
Na[Fe(CN)2(ox)2]
Identify the name for the ligand whose formula is NO2¯.
Nitro
What is the name for the compound with the formula K3[CoF6]?
Potassium hexafluorocobaltate(III)
What is the name for the complex ion [Ni(CN)4I]3-?
Tetracyanoiodonickelate(II) ion
Which one correctly pairs the ligand name and formula?
Thiocyanato, SCN¯
What is the formula for the compound pentaamminechlorocobalt(III) chloride?
[Co(NH3)5Cl]Cl2
What is the formula for the complex ion tetraamminedinitritocuprate(I)?
[Cu(NH3)4(ONO)2]¯ 1. Write the formula for each ligand. ammine: NH3 nitrito: ONO¯ 2. Determine the quantity of each ligand based on prefixes. (NH3)4 (ONO)2 3. Identify the metal ion. cuprate(I) 4. Determine the charge on the metal ion. Cu+ 5. Determine the charge on the complex ion. −1 6. Write the formula of the complex ion. [Cu(NH3)4(ONO)2]¯
