Some examples of the diverse research done by chemistry experts include discovery of new medicines and vaccines,and development of new chemical products and materials. In a article, mentioned the application of 1273-94-5, Name is 1,1′-Diacetylferrocene, molecular formula is C14H6FeO2
The complex [Rh(CO)2{HC(pz?)3}][PF6], 1 +[PF6]- {HC(pz?)3 = tris(3,5-dimethylpyrazolyl)methane}, prepared by reacting [{Rh(CO)2(mu-Cl)}2] with HC(pz?)3 in the presence of Tl[PF6], has a distorted square pyramidal structure with a kappa3-HC(pz?)3 ligand. Carbonyl substitution with Lewis bases gives [Rh(CO)L{HC(pz?)3}] [PF6] {L = PPh3, 2+[PF6]-; L = AsPh3, 3+[PF6]-; L = P(o-tolyl)3, 4+[PF6]-}, which have square planar kappa2 structures, confirmed by X-ray crystallography for 2+[PF6]-. The cations 2+ and 3+ have the third pyrazolyl ring orientated pseudo-parallel to the square planar metal whereas 4+ more likely has the third ring orientated exo to that plane. One-electron oxidation of 2+ and 3+ gives the Rh(II) dications [Rh(CO)(PPh3){HC(pz?)3}]2+, 22+, and [Rh(CO)(AsPh3){HC(pz?)3}]2+, 32+, characterised by ESR spectroscopy. Complex 1+[PF6]- reacts with PhC?CPh to give [Rh(CO)(eta2-PhC?CPh)-{HC(pz?)3}] [PF6], 5+[PF6]-, in which the two-electron donor alkyne occupies an equatorial position in a trigonal bipyramidal kappa3 structure. With MeC?CR (R = Me or Et), 1+[PF6]- gives the kappa2 square planar complexes [Rh{eta4-C4Me2R2C(O)}{HC(pz? )3}][PF6] (R = Me, 6+[PF6]-; R = Et, 7+[PF6]-) in which the cyclopentadienone ligands are coordinated via two Rh-monoalkene bonds; the structurally characterised form of 7+ has the two alkyne units linked head-to-head with the CEt termini bound to the ketonic CO group. With HC?CPh or HC?CH, 1+ gives the octahedral, kappa3 rhodium(III) metallacyclopentadienes [Rh(CO)(eta1:eta1?-CHCRCHCR) {HC(pz?)3}][PF6] (R = Ph, 8+[PF6]-; R = H, 9+[PF6]-) with the two alkynes linked head-to-tail in 8+. The reaction of 1+ with HC?CH also gives the cycloheptatrienone (tropone) derivative [Rh{eta4-C6H6C(O)}{HC(pz?)3} ][PF6], 10+[PF6]-, with a kappa3 ligand and the cycloheptatrienone ligand bound to the metal via two Rh-C sigma-bonds and one Rh-monoalkene interaction.
The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing theoretical assessments of solvent structures and their interactions with reaction intermediates and transition states. Formula: C14H6FeO2, You can get involved in discussing the latest developments in this exciting area about 1273-94-5
Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion