Chlorohydridobis(bis-1,2-(diphenylphosphino)ethane)iron(II) on:
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Chlorobis(dppe)iron hydride is a
In the course of this conversion, high-spin complex FeCl2(dppe)2 converts to low-spin HFeCl(dppe)2.
The complex HFeCl dppe)2_exhibits_a_number_of_reactions_associated_with_the_remaining_Fe-Cl_bond._Reaction_of_the_complex_with_sodium_borohydride_gives_the_dihydride_complex:
:HFeCl(dppe)2__+__NaBH4___→___H2Fe(dppe)2__+__NaCl__+__"BH3"
Removal_of_chloride_using_sodium_tetrafluorborate_under_and_atmostphere_of_hydrogen_or_nitrogen_gives_the_dinitrogen_complex.html" ;"title="sodium_borohydride.html" ;"title="dppe)2 exhibits a number of reactions associated with the remaining Fe-Cl bond. Reaction of the complex with sodium borohydride">dppe)2 exhibits a number of reactions associated with the remaining Fe-Cl bond. Reaction of the complex with sodium borohydride gives the dihydride complex:
:HFeCl(dppe)2 + NaBH4 → H2Fe(dppe)2 + NaCl + "BH3"
Removal of chloride using sodium tetrafluorborate under and atmostphere of hydrogen or nitrogen gives the dinitrogen complex">dinitrogen and { Fe(η2-H2)(H)[1,2-bis(diphenylphosphino)ethane]2} [BF4]: An Experiment for an Advanced Inorganic Chemistry Laboratory Involving Synthesis and NMR Properties of an η2-H2 Complex, journal=Journal of Chemical Education, year=1996, volume=73, issue=10 , pages=988–991, doi=10.1021/ed073p988
:HFeCl(dppe)2 + NaBF4 + N2 → Fe(N2)(dppe)2F4 + NaCl
:HFeCl(dppe)2 + NaBF4 + H2 → Fe(H2)(dppe)2F4 + NaCl
coordination complex
A coordination complex consists of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of bound molecules or ions, that are in turn known as '' ligands'' or complexing agents. ...
with the formula HFeCl(dppe)2, where dppe
1,2-Bis(diphenylphosphino)ethane (dppe) is an organophosphorus compound with the formula (PhPCH) (Ph = phenyl). It is a commonly used bidentate ligand in coordination chemistry. It is a white solid that is soluble in organic solvents.
Preparation ...
is the bidentate ligand 1,2-bis(diphenylphosphino)ethane. It is a red-violet solid. The compound has attracted much attention as a precursor to dihydrogen complex
Dihydrogen complexes are coordination complexes containing intact H2 as a ligand. They are a subset of sigma complexes. The prototypical complex is W(CO)3( PCy3)2(H2). This class of compounds represent intermediates in metal-catalyzed reactions ...
es.
Structure
The complex exhibits octahedral molecular geometry. The chloride and hydride ligands are mutually trans. The bond distances between the iron metal atom and the coordinating ligands are given by the following:Synthesis and reactions
The compound is synthesized according to the following idealized reaction: :FeCl2 + 2 dppe + Na H4→ NaCl + ½ B2H6 + HFeCl(dppe)2
In the course of this conversion, high-spin complex FeCl2(dppe)2 converts to low-spin HFeCl(dppe)2.
The complex HFeCl dppe)2_exhibits_a_number_of_reactions_associated_with_the_remaining_Fe-Cl_bond._Reaction_of_the_complex_with_sodium_borohydride_gives_the_dihydride_complex:
:HFeCl(dppe)2__+__NaBH4___→___H2Fe(dppe)2__+__NaCl__+__"BH3"
Removal_of_chloride_using_sodium_tetrafluorborate_under_and_atmostphere_of_hydrogen_or_nitrogen_gives_the_dinitrogen_complex.html" ;"title="sodium_borohydride.html" ;"title="dppe)2 exhibits a number of reactions associated with the remaining Fe-Cl bond. Reaction of the complex with sodium borohydride">dppe)2 exhibits a number of reactions associated with the remaining Fe-Cl bond. Reaction of the complex with sodium borohydride gives the dihydride complex:
:HFeCl(dppe)2 + NaBH4 → H2Fe(dppe)2 + NaCl + "BH3"
Removal of chloride using sodium tetrafluorborate under and atmostphere of hydrogen or nitrogen gives the dinitrogen complex">dinitrogen and dihydrogen complex
Dihydrogen complexes are coordination complexes containing intact H2 as a ligand. They are a subset of sigma complexes. The prototypical complex is W(CO)3( PCy3)2(H2). This class of compounds represent intermediates in metal-catalyzed reactions ...
es:{{cite journal, authors=Bautista, M. T., Bynum, L. D., Schauer, C. K., title=Synthesis of η2-Dihydrogen Complex, ''trans''-References