Phasing Kits Tungsten Cluster Derivatization Kits
Heavy atom derivatization of biological macromolecules for isomorphous and/or anomalous phasing methods. Experimental Tungsten (W) Phasing – either by SAD/MAD or MIR experiments – has become increasingly popular due to the high electron-density and good solubility in aqueous solutions of Polyoxotungstate Clusters.
Product Information
JBS Phosphotungstate Cluster Kit SKU M-PK-105
The kit contains 6 pre-weighted solid aliquots of Tri-Sodium phosphotungstate cluster at 3.5 mg each.
Tri-Sodium phosphotungstate contains 12 tungsten metal metal centres bridged by 24 oxygen atoms. In the center of the cluster there is a phosphorous heteroatom surrounded by 4 oxygen atoms, the remaining 12 oxygen atoms are forming W=O double bonds.
As a result, the cluster carries a negative charge of 3-.
Phosphotungstate Cluster Kit Manual
JBS Metatungstate Cluster Kit SKU M-PK-106
The kit contains 6 pre-weighted solid aliquots of Hexa-Sodium metatungstate cluster at 3.5 mg each.
Hexa-Sodium metatungstate is composed of 12 tungsten metal centers, each coordinated octahedrally by six oxo O2-ligands. There are a total of 28 bridging oxygen atoms that link the 12 tungsten centres, the remaining 12 oxygen atoms are forming W=O double bonds. In the center of the cluster there is a "void" which contains two protons, H+.
As a result, the cluster carries a negative charge of 6-.
Metatungstate Cluster Kit Manual
JBS Paratungstate Cluster Kit SKU M-PK-107
The kit contains 6 pre-weighted solid aliquots of Deca-Ammonium paratungstate cluster at 3.5 mg each.
Deca-Ammonium paratungstate is composed of 12 tungsten metal centers, each coordinated octahedrally by six oxo O2-ligands. There are a total of 28 bridging oxygen atoms that link the 12 tungsten centres, the remaining 14 oxygen atoms are forming W=O double bonds. In the center of the cluster there is a "void" which contains two protons, H+. As a result, the cluster carries a negative charge of 10-.
Paratungstate Cluster Kit Manual
JBS Tungstate Cluster Kit Containing three different clusters (3.5 mg each) SKU M-PK-108
Download technical sheet from below:For additional questions please call +1 607 266 877 or email [email protected].