A material containing, as a main component, an organic silicon compound represented by the following general formula:
R
1
x
Si(OR
2
)
4-x
(where R
1
is a phenyl group or a vinyl group; R
2
is an alkyl group; and x is an integer of 1 to 3) is caused to undergo plasma polymerization or react with an oxidizing agent to form an interlayer insulating film composed of a silicon oxide film containing an organic component. As the organic silicon compound where R
1
is a phenyl group, there can be listed phenyltrimethoxysilane or diphenyldimethoxysilane. As the organic silicon compound where R
1
is a vinyl group, there can be listed vinyltrimethoxysilane or divinyldimethoxysilane.
一种材料,其主要成分是由以下通式表示的有机硅化合物:
R
1
x
Si(OR
2
)
4-x
(其中 R
1
是苯基或乙烯基;R
2
为烷基;x 为 1 至 3 的整数)进行等离子聚合或与氧化剂反应,形成由含有有机成分的氧化硅膜构成的层间绝缘膜。作为有机硅化合物,其中 R
1
为苯基的有机硅化合物,可以列出苯基三甲氧基硅烷或二苯基二甲氧基硅烷。作为 R
1
为乙烯基的有机硅化合物,可列出乙烯基三甲氧基硅烷或二乙烯基二甲氧基硅烷。
Synthesis of Fluorine-Labeled Peptide Nucleic Acid Building Blocks as Sensors for the <sup>19</sup>F NMR Spectroscopic Detection of Different Hybridization Modes
Peptide nucleic acid (PNA) building blocks, bearing a fluorine sensor at C-5 of the uracil base [viz. trifluoromethyl and 3,3-bis(trifluoromethyl)-4,4,4-trifluorobut-1-ynyl], were synthesized and incorporated to a PNA strand, and their applicability for the monitoring of different hybridization modes by F-19 NMR spectroscopy was studied. Both sensors gave unique F-19 resonance shifts in NMR when the PNA was targeted to a complementary antiparallel DNA, antiparallel RNA, parallel DNA, and parallel RNA. The 5-trifluoromethyl-derived sensor was additionally applied for the monitoring of interconversions from a parallel DNA/PNA complex to an antiparallel RNA/PNA complex and from a PNA/PNA complex to two DNA/PNA complexes (i.e., double-duplex invasion).
Deljagina N. I., Tscherstkow W. F., Sterlin S. R., German L. S., Isw. AN. Ser. khim, (1995) N 3, S 574-575
作者:Deljagina N. I., Tscherstkow W. F., Sterlin S. R., German L. S.
DOI:——
日期:——
US6558756B2
申请人:——
公开号:US6558756B2
公开(公告)日:2003-05-06
Mochalina,E.P. et al., Doklady Chemistry, 1966, vol. 169, p. 816 - 819