Application of 7181-87-5, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.7181-87-5, Name is 1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide, molecular formula is C9H11IN2. In a patent, introducing its new discovery.
Two equivalents of N,N?-dimethylbenzimidazolyl iodide (1) react with Pd(OAc)2 to yield the complex cis-bis(N,N?-dimethyl-benzimidazoli-2-ylidene)diiodo palladium (2). The potentially bidentate ligand 1,1?-methylene-bis(N-methylbenzimidazolyl) diiodide (3) reacts with Pd(OAc)2 to yield the complex [1,1-methylene-bis(N-methylbenzimidazolin-2-ylidene)]diiodo palladium (4) with a bidentate carbene ligand. Both complexes were characterised by 1H- and 13C-NMR spectroscopy. The X-ray crystal structures of 2 and 4 reveal that methylene-bridging of the benzimidazolin-2-ylidene ligands leads to palladium complexes with a reduced Ccarbene-Pd-Ccarbene angle (91.3(2) in 2 vs. 83.7(3) in 4). In addition, the angles between the planes of the carbene ligands and the PdC2I2 plane are reduced from almost perpendicular in 2 (83.06(10) and 79.84(13)) to 54.4(2) and 51.8(2) in 4, while comparable bond distances in 2 and 4 are identical within experimental error.
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