PREPARATION OF BIS(ACETYLACETONATO)COPPER(II)
NAME :
NAME OF GROUP MEMBERS :
STUDENT ID :
NO OF EXPERIMENT :
TITLE OF EXPERIMENT : PREPARATION OF BIS(ACETYLACETONATO)COPPER(II)
DATE OF EXPERIMENT :
PRACTICAL GROUP :
LECTURER :
Objective:
To synthesize the bis(acetylacetonato) copper(II)
To identify the nature of ligand.
Introduction: Bis(acetylacetonato) copper(II) is a complex ion with copper ion in the centre surrounded by other molecules or ions weakly or more strongly bonded to it. The surrounded ions or molecules are called ligands. Ligands acts as Lewis base. It is attached to the centre metal ions by providing lone bond pairs to it. The active metal acts as Lewis acid, accepting electron lone pairs from ligands. The bonding which attach ligands and the centre metal ion together is coordinate bond or dative bonds. It is a type of covalent bond where the ligands shares its lone paired electrons with the centre metal cation. Coordination number is the number of ligand ions or molecule bonded to the cation.
The centre metal ions which from complex ions are also known as cations. To form complex ions, cations musts have empty orbitals with low energy such as 3d and 4s orbitals to accept lone pair electrons from ligands. Cations with higer charge attracts ligands more easily. D-block metals with their high charge and empty orbitals have these features. So, it can form complex ions readily.
Apparatus and Materials:
Measuring cylinder, suction filter, measuring cylinder, beaker, conical flask, petri dish, glass rod, copper(II)nitrate, water, ammonia, acetyl acetone
Procedure:
1. 6g of Copper(II) nitrate (Cu
NAME OF GROUP MEMBERS :
STUDENT ID :
NO OF EXPERIMENT :
TITLE OF EXPERIMENT : PREPARATION OF BIS(ACETYLACETONATO)COPPER(II)
DATE OF EXPERIMENT :
PRACTICAL GROUP :
LECTURER :
Objective:
To synthesize the bis(acetylacetonato) copper(II)
To identify the nature of ligand.
Introduction: Bis(acetylacetonato) copper(II) is a complex ion with copper ion in the centre surrounded by other molecules or ions weakly or more strongly bonded to it. The surrounded ions or molecules are called ligands. Ligands acts as Lewis base. It is attached to the centre metal ions by providing lone bond pairs to it. The active metal acts as Lewis acid, accepting electron lone pairs from ligands. The bonding which attach ligands and the centre metal ion together is coordinate bond or dative bonds. It is a type of covalent bond where the ligands shares its lone paired electrons with the centre metal cation. Coordination number is the number of ligand ions or molecule bonded to the cation.
The centre metal ions which from complex ions are also known as cations. To form complex ions, cations musts have empty orbitals with low energy such as 3d and 4s orbitals to accept lone pair electrons from ligands. Cations with higer charge attracts ligands more easily. D-block metals with their high charge and empty orbitals have these features. So, it can form complex ions readily.
Apparatus and Materials:
Measuring cylinder, suction filter, measuring cylinder, beaker, conical flask, petri dish, glass rod, copper(II)nitrate, water, ammonia, acetyl acetone
Procedure:
1. 6g of Copper(II) nitrate (Cu