Electric Literature of 1806-29-7, 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.1806-29-7, Name is 2,2-Biphenol, molecular formula is C12H10O2. In a patent, introducing its new discovery.
The reaction of compounds of the type [(LZr)(LiH)(L?)]n and [(LZr)(LiH)(L?)(alkyne)]n (L: 2,2?-Biphenolato-dianion, L?: thf, Bu3P, alkyne: Ph-C?C-SiMe3, CH?CH) with water at 0C in a thf solution results in the formation of th trimeric bimetallic complex 8 [(L2Zr)3(mu2-OH)3(mu 3-O)Li5(thf)8(H2O)5] in 50% yield. The X-ray analysis of 8 shows that a planar six-membered ring Zr3(mu2-OH)3 is formed. In the middle of this ring is a dianionic oxygen atom placed, coordinating to the three L2Zr centres in a planar mu3-coordination (bond angles 120,05). Five lithium ions stabilize the aniomc backbone by bridging the biphenolato chelate ligands, which form seven-membered chelate rings with the atoms. 1H-, 13C-, and 7Li-NMR spectra exhibit that the solid state structure remains unchanged in solution (thf).
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