41. The first category is about determining ligands for a given receptor. 42. The ligands coordinate through the nitrogen and the three oxygen centers. 43. Hydrophobic ligands are non-polar molecules such as hydrocarbon chains. 44. These are formed by oxidation peroxide oxidation of a disulfur ligands . 45. A large number of related benzimidazole derived cannabinoid ligands are known. 46. Initially the diazo compound oxidatively adds to the metal ligand complex. 47. NKG2D itself forms a homodimer whose ectodomains serve for ligand binding. 48. A variety of arenes ligands have been installed aside from benzene. 49. A variety of ligands with NDI backbones have also been prepared. 50. Like related d 2 complexes, the oxo ligands are trans.