Prototypes for the Polaronic Ferromagnet. Synthesis and Characterization of High-Spin Organic Polymers

1994 ◽  
Vol 116 (18) ◽  
pp. 8152-8161 ◽  
Author(s):  
Michael M. Murray ◽  
Piotr Kaszynski ◽  
David A. Kaisaki ◽  
Wonghil Chang ◽  
Dennis A. Dougherty
Nanoscale ◽  
2021 ◽  
Author(s):  
Shantanu Mishra ◽  
Kun Xu ◽  
Kristjan Eimre ◽  
Hartmut Komber ◽  
Ji Ma ◽  
...  

Triangulene and its π-extended homologues constitute non-Kekulé polyradical frameworks with high-spin ground states, and are anticipated to be key components of organic spintronic devices. We report a combined in-solution and...


Polyhedron ◽  
2009 ◽  
Vol 28 (5) ◽  
pp. 954-958 ◽  
Author(s):  
Ibtissem Hachem ◽  
Mohamed Salah Belkhiria ◽  
Michel Giorgi ◽  
Charles E. Schulz ◽  
Habib Nasri

2013 ◽  
Vol 845 ◽  
pp. 204-208
Author(s):  
Deock Sam Park ◽  
Tae Sung Ha ◽  
Jung Hyurk Lim ◽  
Kyung Min Kim

Novel ladderlike polysilsesquioxanes containing polypropylene moieties (LPS-PP) were synthesized from LPS having chloromethylphenyl groups (LPS) and polypropylene having hydroxyl groups (PP-OH). LPS-PP was characterized by FT-IR, DSC, SEM, EDX, and TGA. The obtained LPS-PP shows no melting temperature due to the disappearance of melting temperature of PP, indicating the rigidity of Si-O-Si backbone in ladderlike LPS. The char yield of LPS-PP is higher than that of PP-OH because of the silica parts of LPS. This new LPS-PP can be an interesting candidate to fabricate hybrid materials using interactions or compatibility between PP moieties of LPS and various organic polymers.


2015 ◽  
Vol 44 (46) ◽  
pp. 20207-20215 ◽  
Author(s):  
M. E. Pascualini ◽  
S. A. Stoian ◽  
A. Ozarowski ◽  
N. V. Di Russo ◽  
A. E. Thuijs ◽  
...  

A trianionic pincer-type ligand stabilizes rare Fe(ii) and Co(ii) high spin, square-planar complexes.


2016 ◽  
Vol 8 (46) ◽  
pp. 32060-32067 ◽  
Author(s):  
Zhongshan Liu ◽  
Junjie Ou ◽  
Hongwei Wang ◽  
Xin You ◽  
Mingliang Ye

2011 ◽  
Vol 3 (3) ◽  
pp. 587-597 ◽  
Author(s):  
M. I. Hossain ◽  
D. Debnath ◽  
M. Younis ◽  
M. A. Bari ◽  
M. A. J. Miah

A series of thermally stable organic polymers [poly(2,5-diethynylpyridine] (5), [poly(1,4- diethynyl benzene)] (6), [poly(2,5-dialkyl-p-phenyleneethynylene)] (7), and [poly(p,p-diethynylbiphenyl)] (8), were synthesized by the reaction between diterminal aryleneethynylene, [HCCArCCH] {Ar = C5H5N (1); Ar = C6H6 (2); Ar = C6H4(CH3)2 (3); Ar = C6H4-C6H4 (4)} and CuCl in pyridine by Hay’s oxidative coupling method. Then the organometallic polymers [Ph (PnBu3)2Pt-C≡C-(Ar-C≡C-C≡C)n-Pt((PnBu3)2Ph] {Ar = C5H5N (9); Ar = C6H6 (10); Ar = C6H4(CH3)2 (11); Ar = C6H4-C6H4 (12)}   were synthesized by the reaction of organic polymers 5, 6, 7 and 8 with metal precursor (PnBu3)2 PtPhCl in diethylisopropileamine with good yield. These metal-linked polymers were characterized by IR, 1H-NMR, 13C-NMR and 31P-NMR spectra. Finally the molecular weight of the organometallic polymers (9, 10, 11 and 12) was determined by gel permeation chromatography (GPC). It is clearly observed from GPC that the polymers were synthesized with different degree of polymerization. Keywords:  Organometallic polymers; Hay’s Oxidative coupling; GPC. © 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. doi: 10.3329/jsr.v3i3.7293               J. Sci. Res. 3 (3), 587-597 (2011)


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