tetraethynylgermane

Base Information

• Chemical Name: tetraethynylgermane
• CAS No.: 4531-35-5
• Molecular Formula: C8H4Ge
• Molecular Weight: 172.67
• Mol file: 4531-35-5.mol

Synonyms:

Chemical Property of tetraethynylgermane

Chemical Property:

• Vapor Pressure: 4.37mmHg at 25°C
• Boiling Point: 152.9°C at 760 mmHg
• Flash Point: 34.3°C

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of tetraethynylgermane

There total 3 articles about tetraethynylgermane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 35.0%

germaniumtetrachloride (10038-98-9) + acetylenemagnesium bromide (4301-14-8) → tetraethynylgermane (4531-35-5)

Guidance literature:

In tetrahydrofuran; at 0 - 20 ℃; for 13h; Inert atmosphere;

DOI:10.1246/cl.160332

Reference yield:

methanesulfonic acid (75-75-2,98527-29-8) + tetrakis[(trimethylsilyl)ethynyl]germane (13963-42-3) → ((CH3)3SiC2)Ge(C2H)3 (184718-47-6) + bis(trimethylsilylethynyl)diethynylgermane (184718-46-5) + ethynyltris(trimethylsilylethynyl)germane (184718-45-4) + tetraethynylgermane (4531-35-5)

Guidance literature:

In chloroform-d1; byproducts: Me3SiOSO2Me; N2-atmosphere; 2 equiv. acid, 23°C, 120-960 min; not isolated, reaction followed by (1)H-NMR spectroscopy; product ratio depending on reaction time;

DOI:10.1016/s0020-1693(96)05209-7

Reference yield:

→ tetraethynylgermane (4531-35-5)

Guidance literature:

Germanium(IV)-chlorid, Aethinylmagnesiumbromid (Ueberschuss), Tetrahydrofuran, tiefe Temp.;

upstream raw materials:

methanesulfonic acid

tetrakis[(trimethylsilyl)ethynyl]germane

germaniumtetrachloride

acetylenemagnesium bromide

Refernces

• 1、 Brook, Michael A.,Ramacher, Bj?rn,Dallaire, Carol,Gupta, Hari K.,Ulbrich, Dagmar,Ruffolo, Ralph. "Steric control in the formation of Co2(CO)6-alkyne complexes from group 14 tetraalkynes and their reactions with acid". . p. 49 - 57. Retrieved 2008/10/08.