Skip to main content
Ch.21 - Transition Elements and Coordination Chemistry
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoMcMurry 8th EditionCh.21 - Transition Elements and Coordination ChemistryProblema 73a
Capitolo 21, Problema 73a

Draw the structure of the following complexes. What are the oxidation state, coordination number, and coordination geometry of the metal in each?
(a) Pt(en)2

Guida verificata passo dopo passo
1
Identify the components of the complex: Pt(en)2 consists of a platinum (Pt) metal center and two ethylenediamine (en) ligands.
Determine the oxidation state of the metal: Ethylenediamine (en) is a neutral ligand, so it does not affect the oxidation state of the metal. Therefore, the oxidation state of Pt is 0.
Determine the coordination number: Each ethylenediamine ligand is bidentate, meaning it forms two bonds with the metal center. With two en ligands, the coordination number of Pt is 4.
Determine the coordination geometry: With a coordination number of 4, the geometry is typically square planar for platinum complexes.
Draw the structure: Represent the Pt at the center with two en ligands forming a square planar geometry around it. Each en ligand forms two bonds with the Pt, creating a square shape.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Oxidation State

The oxidation state of an element in a compound indicates the degree of oxidation of that element, reflecting the number of electrons lost or gained. In coordination complexes, the oxidation state of the metal can be determined by considering the charges of the ligands and the overall charge of the complex. For example, in Pt(en)2, the oxidation state of platinum can be calculated based on the neutral nature of the ethylenediamine (en) ligands.
Video consigliato:
Percorso guidato
02:42
Oxidation Numbers

Coordination Number

The coordination number refers to the number of ligand atoms that are directly bonded to the central metal atom in a coordination complex. It is crucial for understanding the structure and stability of the complex. In the case of Pt(en)2, each ethylenediamine ligand coordinates through two donor atoms, leading to a coordination number of 4 for platinum.
Video consigliato:
Percorso guidato
00:27
Coordination Numbers

Coordination Geometry

Coordination geometry describes the spatial arrangement of the ligands around the central metal atom in a coordination complex. This geometry is influenced by the coordination number and the steric and electronic properties of the ligands. For Pt(en)2, with a coordination number of 4, the geometry is typically square planar, which is common for d8 metal complexes like platinum.
Video consigliato:
Percorso guidato
02:40
Molecular Geometry of Coordination Complexes
Pratica correlata
Domanda del libro di testo

Draw the structure of the following complexes. What are the oxidation state, coordination number, and coordination geometry of the metal in each?

(b) [Cr(NH3)2(C2O4)2]NO2

112
views
Domanda del libro di testo

Draw the structure of the following complexes. What are the oxidation state, coordination number, and coordination geometry of the metal in each?

(b) [Co(H2O)5Cl]SO4]

101
views
Domanda del libro di testo

Draw the structure of the following complexes. What are the oxidation state, coordination number, and coordination geometry of the metal in each?

(a) Na[Au(CN)2]

95
views
Domanda del libro di testo

(a) Identify the Lewis acid and the Lewis base in the reaction of ethylenediamine (H2NCH2CH2NH2) with Ni2+ to form [Ni(en)3]2+.

(b) Identify the ligands and donor atoms.

(c) Give the coordination number and geometry of the metal in the complex.

83
views