New Paste

Content

https://www.selleckchem.com/products/Adriamycin.html Symmetrically substituted poly(diphenylacetylene) (PDPA) bearing carboxy pendants was found to fold into a one-handed helix upon thermal annealing with nonracemic amines in water accompanied by chiral amplification of the helicity. The induced right- or left-handed helical PDPA was retained (memorized) after complete removal of the chiral amines, thus producing a one-handed helical circularly polarized luminescent PDPA in a helix-sense-selective manner. The helical PDPA with static helicity memory is tolerant toward modification of carboxy pendants, providing functional PDPAs with an optical activity solely due to macromolecular helicity. The PDPA and its derivatives before and after the one-handed helicity induction and its subsequent memory of the helicity exhibited well-resolved very simple 1H and 13C NMR and Raman spectra whose spectral patterns are virtually identical independent of the helical sense bias. On the basis of the 1H and 13C NMR, IR, Raman, and vibrational and electronic circular dichroism spectral measurement results combined with theoretical calculations, the key structural features (cis or trans and cisoid or transoid) of the PDPA as well as its helix inversion barrier and absolute handedness (right- or left-handed helix) and helix-sense excess of the one-handed helical PDPA and its derivatives with static helicity memory were determined. As a result, almost complete right- and left-handed helical cis-transoidal PDPAs with 98% helix-sense excess were successfully obtained using noncovalent helicity induction and memory strategy.Exploring new energetic derivatives of 1,1-diamino-2,2-dinitroethylene (FOX-7) is still a key aspect in the field of energetic materials. However, so far most of the attention has been focused on modification of FOX-7 via different reaction strategies. Now we report the design of three new FOX-7-like compounds (3-5) where one nitro group in FOX-7 is replaced by a nitroge

Optional Paste Settings

Title

Select folder or

Syntax Highlighting

Paste Expiration

Paste Status

Password

Description

Our statistics

Create and share texts quickly and easily 🚀

288,870+

Total pastes

147,658,778+

Total views

85+

Registered users

Our features

Everything you need 😉

Pastes creation

Create multiple posts quickly and easily with our powerful editor.

Folders

Store your pastes in different folders with custom names.

Paste protection

Protect your pastes with password, encryption and captcha.

Multiple syntax languages

We have 150+ syntax languages for your codes.

URL monetization

Earn money by enabling url shorteners in your pastes.

Global settings

Configure each aspect of your pastes globally.

Recent Pastes

In the direction of functional uses of massive emitters inside boron n
HTML | 1K | 25 seconds ago
Aiolos adjusts eosinophil migration in to tissue.
HTML | 134 | 2 minutes ago
Visible-Light-Mediated Corner Dehydrogenative Coupling associated with
HTML | 416 | 2 minutes ago
The entropy driven catalytic response driven Genetic generator for mul
HTML | 895 | 3 minutes ago
Very first the event of massive basic papillary hypothyroid cancer lea
HTML | 0.9K | 3 minutes ago
Keeping Stability In between Innate Stableness along with Plasticity w
HTML | 475 | 4 minutes ago
Glycoprotein investigation making use of lectin microcolumns and also
HTML | 255 | 4 minutes ago