Welcome to LookChem.com Sign In|Join Free

CAS

  • or

23777-40-4

Post Buying Request

23777-40-4 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

23777-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23777-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,7 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23777-40:
(7*2)+(6*3)+(5*7)+(4*7)+(3*7)+(2*4)+(1*0)=124
124 % 10 = 4
So 23777-40-4 is a valid CAS Registry Number.

23777-40-4Relevant articles and documents

Tolman, C. A.,Seidel, W. C.,Gerlach, D. H.

, p. 2669 - 2676 (1972)

Capping nido-Nonagermanide Clusters with M-PPh3 and Dynamics in Solution: Synthesis and Structure of closo-[(Me3Si)3Si]3Et[Ge9 M](PPh3) (M = Ni, Pt)

Frischhut, Sabine,Kaiser, Felix,Klein, Wilhelm,Drees, Markus,Kühn, Fritz E.,F?ssler, Thomas F.

, p. 4560 - 4567 (2019/01/08)

In this work, cluster expansion of nine-atomic germanium clusters with nickel and platinum atoms is reported. The compounds [(Me3Si)3Si]3Et[Ge9Ni](PPh3) and [(Me3Si)3Si]3Et[Ge9Pt](PPh3) are characterized by NMR spectroscopy, elemental analysis, and single crystal X-ray structure analysis. The latter represents the first intermetalloid Ge-Pt cluster with a platinum atom as part of a deltahedron. So far, only one compound of this type has been reported for the homologous Pd. Hence, with these new compounds, metal-coordinated deltahedral Ge9 clusters are now known for the whole triad of group 10 elements. The cluster compounds are accessible by treating [(Me3Si)3Si]3EtGe9 with η2-ethylene-bis-(triphenylphosphine)-nickel(0) and η2-ethylene-bis-(triphenylphosphine)-platinum(0), respectively, in toluene. The crystal structure determination reveals ten-vertex-closo-[Ge9M]-cluster cores (M = Ni, Pt) bearing five exo-bonded ligands. Unlike the nine-vertex-cluster [(Me3Si)3Si]3EtGe9, the penta-functionalized platinum containing cluster compound [(Me3Si)3Si]3Et[Ge9Pt](PPh3) does not show fluctuating behavior in solution over a wide temperature range on the NMR time scale, whereas the [(Me3Si)3Si]3Et[Ge9Ni](PPh3) shows highly dynamic processes in solution at ambient temperature.

Isomerization of a vinylcyclobutene to a cyclohexadiene: A nickel(I)-promoted rearrangement

Choi, Heajin,Hershberger, James W.,Pinhas, Allan R.,Ho, Douglas M.

, p. 2930 - 2936 (2008/10/08)

The nickel-promoted isomerization of a 3-vinylcyclobutene to the corresponding 1,4-cyclohexadiene was studied by using (PPh3)2Ni(C2H4) as the nickel source. Through the use of chemical and electrochemical experiments, it was determined that nickel(I) and not nickel(0) promotes this isomerization reaction at room temperature. The corresponding platinum-vinylcyclobutene complex 4 has been characterized by a single-crystal X-ray diffraction study: C46H42O4P2Pt, monoclinic, P21/n, with a = 10.774 (1) ?, b = 20.281 (4) ?, c = 18.297 (2) ?, β = 97.37 (1)°, Z = 4, R(F) = 0.0378, and Rw(F) = 0.0371.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 23777-40-4