A Newβ-Diketiminate Ligand Carrying a Functional Group on the Carbon Framework. Synthesis and Characterization of a Linear Polymeric Copper(I) Complex

2001 ◽  
Vol 40 (21) ◽  
pp. 5316-5317 ◽  
Author(s):  
Seiji Yokota ◽  
Yoshimitsu Tachi ◽  
Nagatoshi Nishiwaki ◽  
Masahiro Ariga ◽  
Shinobu Itoh
2019 ◽  
Vol 803 ◽  
pp. 346-350
Author(s):  
Jessalyn C. Grumo ◽  
Lady Jaharah Y. Jabber ◽  
Arnold A. Lubguban ◽  
Rey Y. Capangpangan ◽  
Arnold C. Alguno

We report on the rigid polyurethane foam (RPUF) with varying amount of blowing agent. The effects of blowing agent in the formation of polyurethane will be characterized using scanning electron microscopy (SEM) and fourier transform infrared (FTIR) spectroscopy. SEM images revealed that varying the amount of blowing agent will significantly change the surface morphology of the resulting RPUF. The average cell size of the RPUF increases with increasing amount of blowing agent. Moreover, FTIR results revealed the presence of functional group related to formation of urethane bonds such as N-H, C=O, C=N and C-O-C stretching suggesting that polyurethane foam was successfully synthesized. This simple and straightforward process of RPUF using water as blowing agent will be economical.


2015 ◽  
Vol 3 (33) ◽  
pp. 8675-8683 ◽  
Author(s):  
Chuang Yao ◽  
Jingxian Li ◽  
Jinshan Wang ◽  
Xinjun Xu ◽  
Ronghua Liu ◽  
...  

An efficient phosphorescent dye was developed by grafting a typically used phosphor to a functional group with an alkyl chain to suppress the phase aggregation.


2020 ◽  
Vol 44 (28) ◽  
pp. 12143-12153
Author(s):  
Kavita Kumari ◽  
Saurabh Kumar ◽  
Krishna Nand Singh ◽  
Michael G. B. Drew ◽  
Nanhai Singh

Six new structurally characterized heteroleptic cationic [Ni(ii) β-oxodithioester-dppe]+PF6− complexes as efficient catalysts for Chan–Lam coupling reaction affording N-arylated products with significant functional group tolerance.


2013 ◽  
Vol 30 (8) ◽  
pp. 1609-1613 ◽  
Author(s):  
Guodong Hui ◽  
Weiyun Huang ◽  
Yunzhao Song ◽  
Deben Chen ◽  
Anyong Zhong

2016 ◽  
Vol 10 (2) ◽  
pp. 137
Author(s):  
Sentot Budi Rahardjo ◽  
Surya Dewi Marliyana ◽  
Nur Asih Siwi Wulandari

<p>The purpose of the research is to find out the synthesis, formula and characteristic of complex of Nickel(II) with hydantoin (hyd). Complex of nickel(II) with  hydantoin  have been synthesized in 1 : 1 mole ratio of metal to ligan in methanol.The formula of  complex which are predicted from analysis of % Ni in complex by Atomic Absorption Spectroscopy (AAS) is Ni(hyd)<sub>2</sub>(H<sub>2</sub>O)<sub>3</sub>.SO<sub>4</sub>.  Ratio  of  cation  and  anion  of  complex  is  measured  by conductivitymeter  correspond to 1: 1.  The thermal analysis  is determined  by Differential Thermal  Analyser  (DTA)  indicate  that  complex  contain  some  hydrate,  thus  possibility formula  of  complex  is  [Ni(hyd)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]SO<sub>4</sub>.H<sub>2</sub>O (Diaquadihydantoinnikel(II) sulfat monohidrat).  Data  of  infra  red  spectra  show  a  shift  of  N-H  group  and  tertier  N  group 138 absorption  and  indicate  this  functional  group  coordinated  to  the  center  ion.  Magnetic Suscepbility measurement show that the complex is paramagnetic with μ<sub>eff</sub>  = 3.2  BM. The UV-Vis spectra appear do to 2 transition peak on  λ  =  740 nm (13,513 cm<sup>-1</sup>) and  405 nm (24,691 cm<sup>-1</sup>).  The peak indicate that structure of complex is octahedral with transition <sup>3</sup>A<sub>2g</sub>→ <sup>3</sup>T<sub>1g</sub>(P)(ν<sub>2</sub>) andtransition <sup>3</sup>A<sub>2g</sub>  → <sup>3</sup>T<sub>1g</sub>(F)(ν<sub>3</sub>). One peak which  is  not appear is transition <sup>3</sup>A<sub>2g</sub> → <sup>3</sup>T<sub>2g</sub> (F)(ν<sub>1</sub>) which also estimate of 10 Dq (Δ<sub>0</sub>) is 103.615 kJ mol<sup>-1</sup>.</p>


2017 ◽  
Vol 3 (1) ◽  
pp. 198
Author(s):  
Supriyono Supriyono ◽  
Hamdan Hadi Kusuma ◽  
Mulyatun Mulyatun ◽  
Biaunik Niski Kumila

<p style="text-align: justify;">Wasted-plastic which is a hardly-decomposed material was one of the major problems of trash-recycling management in Indonesia. Replacing a common plastic with biodegradable plastic was one of the solution to reduce the amount of undecomposed-materials in the enviroment. Therefore, the aim of this resarch is to study how to synthesis cassava shell based biodegradable plastic and to analyse the effect of kitosan addition on cassava shell based biodegradable plastic properties. There are three basic characterization processes performed to analyse the sample properties, i.e mechanical test, FTIR and biodegradability test. Kitosan enhanced the mechanical and biodegradability properties of samples. The elongation-percentage decreased down to 8,57% along with the increasing the amount of kitosan concentration. FTIR data indicated the presence of O-H, N-H, C-H, C=C, NO2 and C-O organic functional group on biodegradable plastic samples. Kitosan reduce the decomposition process of samples due to its hydrophilicity. Sample with highest concentration of kitosan decomposed at the longest time up to 14 days. . ©2017 JNSMR UIN Walisongo. All rights reserved.</p>


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