|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM19840834X |
| 003 |
DE-627 |
| 005 |
20231223212643.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231223s2010 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1021/la100858q
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0661.xml
|
| 035 |
|
|
|a (DE-627)NLM19840834X
|
| 035 |
|
|
|a (NLM)20504006
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Scheres, Luc
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Self-assembly of organic monolayers onto hydrogen-terminated silicon
|b 1-alkynes are better than 1-alkenes
|
| 264 |
|
1 |
|c 2010
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 30.09.2010
|
| 500 |
|
|
|a Date Revised 23.12.2020
|
| 500 |
|
|
|a published: Print
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a Recently, a new method for the preparation of high-quality organic monolayers with 1-alkynes at room temperature in the dark (i.e., without any external activation) was reported. To pinpoint the precise origin of this self-assembly process and to compare the reactivity of 1-alkenes and 1-alkynes toward hydrogen-terminated Si(111) [H-Si(111)], we followed the gradual formation of both monolayers at room temperature by static water contact angle measurements. Subsequently, attenuated total reflection infrared spectroscopy (ATR-IR) and X-ray photoelectron spectroscopy (XPS) were used to obtain detailed information about the structure and quality of the resulting monolayers. Our data clearly demonstrate that 1-alkynes are considerably more reactive toward H-Si(111) than 1-alkenes. 1-Alkynes are able to self-assemble into densely packed hydrophobic monolayers without any external activation (i.e., at room temperature under ambient light and even in the dark) whereas for 1-alkenes under the same conditions hardly any reactivity toward H-Si(111) was observed. The self-assembly of 1-alkynes on H-Si(111) at room temperature is explained by three factors: the higher nucleophilicity of 1-alkynes, which results in a facile attack at the electron-hole pairs at the H-Si surface and easy Si-C bond formation, the stabilization of the beta radical by delocalization over the double bond, and the lower-energy barrier encountered for H abstractions
|
| 650 |
|
4 |
|a Journal Article
|
| 700 |
1 |
|
|a Giesbers, Marcel
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zuilhof, Han
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 13 vom: 06. Juli, Seite 10924-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:26
|g year:2010
|g number:13
|g day:06
|g month:07
|g pages:10924-9
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1021/la100858q
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 26
|j 2010
|e 13
|b 06
|c 07
|h 10924-9
|