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Acetylferrocene is the organoiron compound with the formula (C 5 H 5)Fe(C 5 H 4 COCH 3). It consists of ferrocene substituted by an acetyl group on one of the cyclopentadienyl rings. It is an orange, air-stable solid that is soluble in organic solvents.
Ferrocene is an organometallic compound with the formula Fe(C 5 H 5) 2.The molecule is a complex consisting of two cyclopentadienyl rings sandwiching a central iron atom. It is an orange solid with a camphor-like odor that sublimes above room temperature, and is soluble in most organic solvents.
Ferrocenecarboxaldehyde, owing to the versatility of the formyl group, is a precursor to many ferrocene-modified compounds. With a Wittig reagent , it converts to vinylferrocene and related derivatives. [ 5 ]
In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end. Polar molecules must contain one or more polar bonds due to a difference in electronegativity between the bonded atoms.
[9] [10] On rows of the periodic table, polarizability therefore decreases from left to right. [9] Polarizability increases down on columns of the periodic table. [9] Likewise, larger molecules are generally more polarizable than smaller ones. Water is a very polar molecule, but alkanes and other hydrophobic molecules are more polarizable ...
Carbon-bridged [1] ferrocenophanes do not exist because of the high ring strain. In heteroatom-bridged [1] ferrocenophanes, bonding angles between 18 and 27° are known. [1] Depending on the bridging, the cyclopentadienyl ligands of the ferrocene parent can have a staggered or ecliptical conformation.
As the ferrocene analogue of styrene, it is the precursor to some polyferrocenes. [1] It is an orange, air-stable oily solid that is soluble in nonpolar organic solvents. Vinylferrocene can be prepared by the dehydration of α-hydroxylethylferrocene, which is obtained from acetylferrocene . [ 2 ]
As an example, figure 1 shows a 54-ferrocene dendrimer which was synthesized by a fast convergent approach. [5] Synthesis of compound 1 A 10-ferrocene dendrimer. Dendrimers with ferrocene cores have been synthesized by decorating suitably functionalized ferrocenes, e.g., decaallylferrocene. [1] Synthesis of compound 1