Crystalline Complex Formation
Crystalline Complex Formation
Christine Orobiaa, John Anthony Pobleteb, Mary Janzel Prieto*
College of Pharmacy, Adamson University, Manila Phillipines
College of Pharmacy, Adamson University, Manila Philippines
Date submitted: January 25, 2013
Abstract
In this experiment we needed again to gain crystals. The increased affinity towards complex formation exhibited by metal ions with an unfilled d-shell is related to the crystal field stabilization of such compounds and furnishes an explanation of what is the basis of the so-called Irving-Williams rule. The orbital degeneracy of the ground term determines the symmetry of the configuration and is thus responsible for irregularities in the complexity constants. In this experiment, we want to show how many grams of thiourea that we gain. The first thing that we do was mixing the thiourea and anhydrous methanol we dissolved the compound and put on the hot to warmed add a few drops of carbon tetra chloride-octanol when you see that the crystals filter it. After this things put it inside the oven and left it to an hour after an hour we weigh it again and solved for the percentage recovery.
Keywords: anhydrous methanol; thiourea; carbon tetra-chloride
Introduction
Crystalline inclusion complexes represent an intriguing class of supramolecular assembly that continues to receive considerable attention. The rational design of composite solid state materials has many potential applications in areas such as chemical preparation, crystals engineering and non linear optics. One tactic commonly employed in the synthesis of potential inclusion hosts is the incorporation of functional groups known to participate in relatively strong hydrogen bonding interactions (such as O-H, N-H and CO2H moieties) into rigid and bulky molecular frameworks. The presence of symmetry elements within the lot of crystals that seems like needle appearance. Those crystals that formed above the filter paper is called the
Christine Orobiaa, John Anthony Pobleteb, Mary Janzel Prieto*
College of Pharmacy, Adamson University, Manila Phillipines
College of Pharmacy, Adamson University, Manila Philippines
Date submitted: January 25, 2013
Abstract
In this experiment we needed again to gain crystals. The increased affinity towards complex formation exhibited by metal ions with an unfilled d-shell is related to the crystal field stabilization of such compounds and furnishes an explanation of what is the basis of the so-called Irving-Williams rule. The orbital degeneracy of the ground term determines the symmetry of the configuration and is thus responsible for irregularities in the complexity constants. In this experiment, we want to show how many grams of thiourea that we gain. The first thing that we do was mixing the thiourea and anhydrous methanol we dissolved the compound and put on the hot to warmed add a few drops of carbon tetra chloride-octanol when you see that the crystals filter it. After this things put it inside the oven and left it to an hour after an hour we weigh it again and solved for the percentage recovery.
Keywords: anhydrous methanol; thiourea; carbon tetra-chloride
Introduction
Crystalline inclusion complexes represent an intriguing class of supramolecular assembly that continues to receive considerable attention. The rational design of composite solid state materials has many potential applications in areas such as chemical preparation, crystals engineering and non linear optics. One tactic commonly employed in the synthesis of potential inclusion hosts is the incorporation of functional groups known to participate in relatively strong hydrogen bonding interactions (such as O-H, N-H and CO2H moieties) into rigid and bulky molecular frameworks. The presence of symmetry elements within the lot of crystals that seems like needle appearance. Those crystals that formed above the filter paper is called the