14878-41-2

Basic information

• Product Name: tris(ethylenediamine)cobalt(III)
• Synonyms: Aids003236;Aids-003236;Co(en)3;Cobalt iii ethylenediamine;Cobalt(3+), tris(1,2-ethanediamine-.kappa.N,.kappa.N')-, (oc-6-11)-;Cobalt(3+), tris(1,2-ethanediamine-N,N')-, (oc-6-11)-;Cobalt(3+), tris(ethylenediamine)-, ion
• CAS NO: 14878-41-2
• Molecular Formula: C₆H₂₄CoN₆
• Molecular Weight: 0
• Mol File: 14878-41-2.mol
• Article Data: 15

Chemical Properties

• Boiling Point: 119.7°Cat760mmHg
• Flash Point: 33.9°C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: tris(ethylenediamine)cobalt(III)(CAS DataBase Reference)
• NIST Chemistry Reference: tris(ethylenediamine)cobalt(III)(14878-41-2)
• EPA Substance Registry System: tris(ethylenediamine)cobalt(III)(14878-41-2)

Safety Data

• Hazardous Substances Data: 14878-41-2(Hazardous Substances Data)

Usage

InChI:InChI=1/3C2H8N2.Co/c3*3-1-2-4;/h3*1-4H2;/q;;;+3

Upstream product

• 3017-60-5 cobalt(II) thiocyanate 
• 107-15-3 ethylenediamine 
• 23523-25-3 tris(ethylenediamine)cobalt(II) 
• 25624-92-4 monoammonium α-aminomalonate 
• 46240-02-2 Δ-(-)589-bis(ethylenediamine)glycinatocobalt(III)(2+) 
• 46240-02-2 Λ-(+)589-bis(ethylenediamine)glycinatocobalt(III)(2+) 
• 89198-04-9 fac(5,5)-[Co(ethylenediamine)(N-(2-aminoethyl)aspartato)]Br*H₂O 
• 13408-72-5 trans-dichlorobis(ethylenediamine)cobalt(III) chloride 
• 4848-43-5 (2-aminoethyl)diphenylphosphane 
• 7647-15-6 sodium bromide 

Downstream Products

• 23523-25-3 tris(ethylenediamine)cobalt(II) 
• 219563-50-5 V(picolinate)₃ 
• 22541-53-3 cobalt(II) 
• 58220-56-7 tris(4,4'-dimethylbipyridine)chromium⁽³⁺⁾ 
• 15276-15-0 tris(2,2'-bipyridine)chromium(III) 
• 51194-70-8 Cr(5-Mephen)3⁽³⁺⁾ 
• 51194-72-0 [Cr(4,7-dimethyl-1,10-phenanthroline)3]⁽³⁺⁾ 
• 85664-13-7 Cobalt(III)sepulchrate 
• 16091-77-3 Cr(edta)^(1-) 
• 72496-77-6 Co(sep)⁽³⁺⁾ 
• 31011-74-2 {Coen3}I(2+) 
• 57545-69-4 {Coen3}Cl(2+) 

Relevant articles and documents

211. Ligand Substitution Reaction of Bis(ethylenediamine)glycinatocobalt(III) Complex with Ethylenediamine Catalyzed by the Photo-excited Tris(2,2'-bipyridine)ruthenium(II) Complex

Substitution reaction with ethylenediamine of coordinated glycinate ligand in bis(ethylenediamine)glycinatocobalt(III) complex has been studied in the presence of photo-excited tris(2,2'-bipyridine)ruthenium(II) complex in alkaline aqueous solution (buffe

Synthesis and characterization of cobalt(III) complexes containing α-diamine and carbinolamine derived from α-aminomalonate and ethylenediamine

The α-aminomalonate anion (AM2-) undergoes a C-N bond formation reaction with trans-[CoCl2(en)2]+ (en = ethylenediamine) in the presence of triethylamine (Et3N) to produce α-diamine and carbinolamine complexes. The reaction in water under air gives the carbinolamine complex 3 predominantly whereas the reaction under N2 yields the α-diamine complex 2 preferentially. These complexes were characterized by absorption and 1H and 13C NMR spectroscopy and elemental analysis. The X-ray crystal structure of the α-diamine complex 2b ([Co(N-(2-aminoethyl)-α,α-diaminomalonato)(en)]Cl·0.5H 2O) has been determined: formula C7H17N5O4CoCl·0-5H 2O, space group P1 (triclinic); a = 13.196 (4) A?, b = 13.212 (5) A?, c = 7.259 (3) A?, α = 93.78 (3)°, β = 89.00 (3)°, γ = 92.80 (3)°, Z = 4, R = 0.056. The free OH group of the carbinolamine complex 3 ([Co(N-(2-amino-ethyl)-α-amino-α-hydroxymalonato)(en)]ClO 4·H2O) was confirmed by 1H NMR in DMSO-d6 with the addition of D2O. Of great interest is that the C-N bond formation reaction occurs on the sp3 carbon of the AM2- ion.

Stereoselectivity in the reduction of [Co(ox)3]3- by [Co(en)3]2+ and its derivatives

The oxidation of cobalt(II) by [Co(ox)3]3- in 1,2-diaminoethane solutions proceeds by both inner-sphere and outer-sphere pathways leading to formation of [Co(en)2(ox)]+ and [Co(en)3]3+ with rate constants 3300 and 390 M-1 s-1, respectively, at 25.0°C and 0.10 M ionic strength. When optically active [Co(ox)3]3- is used, both pathways show stereoselectivity. In the inner-sphere pathway, stereoselectivity is small, 1.5% ΔΔ, a consequence of the separation of the reacting centers by the oxalate bridge. In the outer-sphere pathway, stereoselectivity is 9% ΔΔ. The effect on the stereoselectivity of varying the structure of the reductant for the series [Co(sep)]2+, [Co(sen)]2+, [Co(en)3]2+, [Co((±)-bn)3]2+, and [Co((±)-chxn)3]2+ has been investigated for this pathway. Outersphere stereoseiectivity has also been examined in the reactions of [Co(mal)3]3- with [Co(en)3]2+ and [Co((±)-chxn)3]2+. The stereoselectivity data are consistent with a mechanism in which the carboxylate faces of [Co(ox)3]3- or [Co(mal)3]3- are presented to various orientations of the reductants in strong precursor ion pairs and are dependent on the relative importance of hydrogen-bonding and electrostatic interactions between the complexes.