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1233373-66-4

Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 1233373-66-4 Structure

  • Basic information

    1. Product Name: Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2)
    2. Synonyms: Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2)
    3. CAS NO:1233373-66-4
    4. Molecular Formula:
    5. Molecular Weight: 652.809
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1233373-66-4.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2)(CAS DataBase Reference)
    10. NIST Chemistry Reference: Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2)(1233373-66-4)
    11. EPA Substance Registry System: Nb(NC(CH3)3)(NHC(CH3)3)(NC6H3(CH(CH3)2)2CCH2CHCCH3NC6H3(CH(CH3)2)2)(1233373-66-4)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 1233373-66-4(Hazardous Substances Data)

1233373-66-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233373-66-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,3,7 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1233373-66:
(9*1)+(8*2)+(7*3)+(6*3)+(5*3)+(4*7)+(3*3)+(2*6)+(1*6)=134
134 % 10 = 4
So 1233373-66-4 is a valid CAS Registry Number.

1233373-66-4Downstream Products

1233373-66-4Relevant articles and documents

Halo, alkyl, aryl, and bis(imido) complexes of niobium supported by the β-diketiminato ligand

Tomson, Neil C.,Arnold, John,Bergman, Robert G.

, p. 2926 - 2942 (2010/10/04)

Synthesis of the complex (BDI)Nb(NtBu)Cl2py (BDI=HC[C(Me)N(2,6-iPr2-C6H3)] 2) was achieved in high yield following the treatment of Nb(N tBu)Cl3py2 with Li(BDI)(OEt2). Substitution of the chlorides for fluorides was effected by introducing 2.0 equiv of Me3SnF in toluene, providing the pyridine-coordinated difluoride complex (BDI)Nb(NtBu)F2py in modest yield. The pyridine ligands from both halide compounds were removed by treatment with B(C6F5)3, affording the Lewis base-free complexes (BDI)Nb-(NtBu)X2 (X=Cl, F). Additionally, the Lewis base-free dichlorides of the tBu-imido and Ar-imido (Ar= 2,6-iPr2-C6H3) complexes were obtained following treatment of Nb(NR)Cl3(dme) (R = tBu, Ar) with Li(BDI)(OEt2). The pyridine-coordinated dichloride was alkylated and arylated to form the dimethyl complex (BDI)Nb(N tBu)Me2 (described previously, see text) and the mono(p-tolyl) complex (BDI)Nb-(NtBu)Cl(p-tol), the latter of which was methylated with MeMgBr to yield the mixed alkyl/aryl complex (BDI)Nb(N tBu)Me(p-tol) in good yield. A rare example of a group 5 bis( tBu-imido) species was synthesized in good yield via treatment of (BDI)Nb(NtBu)Cl2py with 2.0 equiv of LiNHtBu to form (BDI)Nb(NtBu)2py. Exchange of the coordinated pyridine ligand for either pyridine-d5 or dmap (p-(dimethylamino) pyridine) was shown to occur through a dissociative mechanism, allowing for removal of the coordinated Lewis base by treatment with B(C6F 5)3. The resulting average C2v-symmetric tetracoordinate bis(imido) complex (BDI)Nb(NtBu)2 was characterized in solution by NMR spectroscopy and observed to undergo clean thermal decomposition to yield (BDI#)Nb(NtBu)(NH tBu) (BDI#=H2Cd C(NAr)CH=C(NAr)Me) over several hours at room temperature. Treatment of the four-coordinate bis(imido) with tBuNCO resulted in clean [2 + 2] cycloaddition to yield an oxaazametallacyclobutane complex, which was further observed to extrude tBuNdCdNtBu over 12 h at room temperature. The molecular structures of (BDI)Nb(NtBu)Cl2py, (BDI)Nb(NAr)Cl 2, (BDI)Nb(NtBu)Me2, (BDI)Nb-(N tBu)Cl(p-tol), (BDI)Nb(NtBu)2py, and (BDI)Nb(NtBu)2(dmap) were determined crystallographically. Finally, DFT (BP86) geometry optimization calculations on a model complex of the thermally unstable four-coordinate bis(imido) species allowed for identification of the orbital interactions leading to activation of the imido groups through mixing with the BDI frontier orbitals.

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