|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM227839757 |
| 003 |
DE-627 |
| 005 |
20231224074554.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231224s2013 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/mrc.3962
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0759.xml
|
| 035 |
|
|
|a (DE-627)NLM227839757
|
| 035 |
|
|
|a (NLM)23712940
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Schoen, B W
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Identification and quantification of cis and trans isomers in aminophenyl double-decker silsesquioxanes using 1H-29Si gHMBC NMR
|
| 264 |
|
1 |
|c 2013
|
| 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 07.06.2014
|
| 500 |
|
|
|a Date Revised 08.07.2013
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a Copyright © 2013 John Wiley & Sons, Ltd.
|
| 520 |
|
|
|a Cis and trans isomers of a series of double-decker silsesquioxanes (DDSQ) were characterized by two-dimensional NMR techniques. The (1)H NMR spectra of these species have not previously been assigned to a degree that allows for quantification. Thus, (1)H-(29) Si HMBC correlations were applied to facilitate (1)H spectral assignment and also to confirm previous (29)Si assignments for this class of silsesquioxanes. With the ability to identify all the pertinent resonances of the (1)H NMR spectrum, (29)Si NMR is no longer required for quantification and required only for characterization. This not only saves time and material but also provides a more accurate quantification, thus allowing for the ratio of cis and trans isomers present in each compound to be determined. A more accurate measure of the cis/trans ratio enables the investigation of its influence on the physical and chemical properties of DDSQ nanostructured materials
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a 1H
|
| 650 |
|
4 |
|a 1H-29Si HMBC
|
| 650 |
|
4 |
|a 29Si
|
| 650 |
|
4 |
|a 2D NMR
|
| 650 |
|
4 |
|a NMR
|
| 650 |
|
4 |
|a double-decker silsesquioxanes; cis/trans isomers
|
| 650 |
|
7 |
|a Isotopes
|2 NLM
|
| 650 |
|
7 |
|a Organosilicon Compounds
|2 NLM
|
| 650 |
|
7 |
|a Protons
|2 NLM
|
| 650 |
|
7 |
|a Silicon
|2 NLM
|
| 650 |
|
7 |
|a Z4152N8IUI
|2 NLM
|
| 700 |
1 |
|
|a Holmes, D
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Lee, A
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 51(2013), 8 vom: 05. Aug., Seite 490-6
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
|
| 773 |
1 |
8 |
|g volume:51
|g year:2013
|g number:8
|g day:05
|g month:08
|g pages:490-6
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/mrc.3962
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 51
|j 2013
|e 8
|b 05
|c 08
|h 490-6
|