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Silane, [(5-ethynyl-1,3-phenylene)di-2,1-ethynediyl]bis[tris(1-methylethyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

229949-81-9

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229949-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 229949-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,9,4 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 229949-81:
(8*2)+(7*2)+(6*9)+(5*9)+(4*4)+(3*9)+(2*8)+(1*1)=189
189 % 10 = 9
So 229949-81-9 is a valid CAS Registry Number.

229949-81-9Relevant academic research and scientific papers

High-nuclearity cobaltadendrimers

Constable, Edwin C.,Eich, Oliver,Housecroft, Catherine E.

, p. 1363 - 1364 (1999)

New dendritic polyalkynes have been prepared and reacted with [Co2(CO)8] to give cobaltadendrimers containing up to 40 cobalt atoms.

Daisy Chain Dendrimers: Integrated Mechanically Interlocked Molecules with Stimuli-Induced Dimension Modulation Feature

Jiang, Bo,Ke, Yubin,Li, Mu,Li, Wei-Jian,Li, Xiaopeng,Wang, Wei,Wang, Xu-Qing,Wen, Jin,Yang, Hai-Bo,Yao, Rui,Yin, Guang-Qiang,Yin, Panchao

, p. 8473 - 8482 (2020/05/28)

The precise construction of the high-order mechanically interlocked molecules (MIMs) with well-defined topological arrangements of multiple mechanically interlocked units has been a great challenge. Herein, we present the first successful preparation of a

Facile construction of organometallic rotaxane-terminated dendrimers using neutral platinum-acetylides as the main scaffold

Wang, Yu-Xuan,Zhou, Qi-Feng,Chen, Li-Jun,Xu, Lin,Wang, Cui-Hong,Li, Xiaopeng,Yang, Hai-Bo

supporting information, p. 2224 - 2227 (2018/03/06)

We present the successful construction of a new family of organometallic rotaxane-terminated dendrimers using neutral platinum-acetylides as the main scaffold. The fourth generation dendrimer has 24 rotaxane moieties on the surface termini in a monodisper

Modular syntheses of star-shaped pyridine, bipyridine, and terpyridine derivatives by employing sonogashira reactions

Trawny, Daniel,Kunz, Valentin,Reissig, Hans-Ulrich

, p. 6295 - 6302 (2015/03/30)

A simple and flexible synthesis for a series of star-shaped pyridine, bipyridine, and terpyridine derivatives is reported by using a modular approach that combines the use of a ligand, spacer, and core unit. A fairly efficient method to prepare 4′-nonafloxy-functionalized terpyridine derivatives is described. The building blocks that contain the functionalized pyridine, bipyridine, or terpyridine derivatives were linked to different C3-symmetrical core units. In most cases, Sonogashira reactions were employed in the crucial final steps of the synthesis. A star-shaped dodecafluorinated compound was also prepared in a straightforward fashion. A simple procedure for the preparation of partially silylated 1,3,5-triethynylbenzene derivatives is presented, which provides an approach to C2-symmetrical star-shaped compounds that have only one terpyridine and two terphenyl units as "dummy" ligands. The absorption and emission spectra of the fully conjugated C3-symmetrical pyridine derivatives were systematically investigated, and fairly large Stokes shifts were observed.

Synthesis of branched tetranuclear alkynylplatinum(II) terpyridine complexes and their photophysical properties

Xu, Peng,Ye, Shifan,Wu, Haotian,Yan, Zhiping,Jia, Hongxing,Du, Pingwu

, p. 3486 - 3490 (2014/06/10)

Herein we report the synthesis of two luminescent branched tetranuclear alkynylplatinum(II) complexes {[Pt(tBu3-tpy)]2[Ar(CC) 4][Pt(tBu3-tpy)]}2(PF6)4 (I and II; tBu3-

An effective, orthogonal deprotection strategy for differentially functionalized, linear and Y-shaped oligo phenylene ethynylenes

Chandra, Kusum L.,Zhang, Sheng,Gorman, Christopher B.

, p. 7120 - 7132 (2008/02/07)

Several methodologies for the selective deprotection acetylenes have been reported previously. However, as is shown here, they are often not reliable or convenient. Here, an approach is reported that is efficient and general. Use of this approach to synth

Investigations of Electronic Energy Transfer Dynamics in Multiporphyrin Arrays

Brodard, Pierre,Matzinger, Stephan,Vauthey, Eric,Mongin, Olivier,Papamicael, Cyril,Gossauer, Albert

, p. 5858 - 5870 (2007/10/03)

A study of the dynamics of electronic energy transfer (EET) in arrays containing three, four, and six tetraphenylporphine units connected with phenylethynyl spacers is reported. For arrays containing the same chromophores, the EET rate constant was determ

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