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Synthesis, Spectral and Theoretical Studies of Macrocyclic Cu(II), Ni(II) and Co(II) Complexes by Template Reaction of Malonic Acid with Metal (II) Chloride and Urea or Thiourea

Omar Hamad Shehab AL-Obaidi & Abdalhady R. H. Al-Hiti · Chemical Science International Journal · 2012

Six new macrocyclic complexes were synthesized by template reaction of urea or thiourea with malonic acid and metal (II) chloride. The metal to ligand ratio of the complexes was found to be (1:1). The Co(II) and the Ni(II) complexes are proposed to be square planar and Cu(II) com...

Open access Research Article 10.9734/ACSJ/2012/1063

Synthesis of Functionalized Iron Oxide Nanoparticle with Amino Pyridine Moiety and Studies on Their Catalytic Behavior

D. Girija, Halehatty S. Bhojya Naik, B. Vinay Kumar & C. N. Sudhamani · Chemical Science International Journal · 2011

Aim: The main objective of this paper is to study the synthesis of functionalized iron oxide nanoparticle and its reactivity towards chromene synthesis Study design: Functionalized iron oxide nanoparticle study. Place and duration of study: Department of Studies and Research in I...

Open access Research Article 10.9734/ACSJ/2011/437

A Comparative Study of the Adsorptive Characteristics of Mucin to Calcium Hydroxyapatite and Titanium Implants

Omoniyi Kehinde Israel, Ekwumemgbo Adamma Patricia, Emmanuel Echiobi Gaba & Adewusi Adeola Mary · Chemical Science International Journal · 2011

Aims: The study is aimed to examine the adsorptive characteristics of the main salivary protein, mucin onto Ti surfaces and compare the scientific data with that onto CaHap; towards elucidating the biocompatibility of these two candidates in biomedical applications. Place and Dur...

Open access Research Article 10.9734/ACSJ/2011/289

A Facile Synthesis of 7-amino-1,3-diaryl-5-phenyl-2-thioxo-pyrano[2,3-d]pyrimidine-4(5H)-ones

Nimalini Moirangthem & Warjeet S. Laitonjam · Chemical Science International Journal · 2011

The reactions of arylidene derivatives such as ethylphenylmethylenemalononitrile 3a, ethylphenylmethylenecyanoacetate 3b and ethylphenylmethylenecyano-acetamide 3c with substituted thiobarbituric acids 2a-e in presence of NaOCH3 and MeOH afforded 7-amino-1,3-diaryl-5-phenyl-2-thi...

Open access Research Article 10.9734/ACSJ/2011/345

Correlation of Photosubstitution Quantum Efficiencies of [Cr Lm Cln](3-n)+ Complexes with Solvent Properties in Mixed Solvents by Statistical Relationships

A. Rajendran & K. Anbalagan · Chemical Science International Journal · 2011

Objectives: This investigation focuses on the excited state aquation reactions of a series of [Cr(N)xCly](3-y)+ [(N)x = (en)2, (pn)2, (tn)2, (dien), (trien) and (tetren)] complexes in binary solvent(methanol/water) media. The main objective of this paper is to study the quantum y...

Open access Research Article 10.9734/ACSJ/2011/261

MgO Enriched Coal Fly Ash as Highly Active Heterogeneous Base Catalyst for Claisen-Schmidt Condensation Reaction

Deepti Jain & Ashu Rani · Chemical Science International Journal · 2011

A novel fly ash supported solid base catalyst (MgO/fly ash) has been synthesized by using F-type fly ash and Mg(NO3)2 as precursor. The synthesized solid base possessed stable Si-O-Mg phase with sufficient hydroxyl group to catalyze liquid phase, solvent free and single step cond...

Open access Research Article 10.9734/ACSJ/2011/335

Aldehyde, Ketone and Methane Emissions from Motor Vehicle Exhaust: A Critical Review

Sasi Kumar, M. Nayek, A. Kumar, A. Tandon, P. Mondal, P. Vijay, U. D. Bhangale & D. Tyagi · Chemical Science International Journal · 2011

Recent data indicate that, in many countries, mobile sources are responsible for the largest portion of emissions of aldehydes, ketones and certain other air toxic pollutants. These air toxic pollutants along with methane are either carcinogenic or pose significant human health t...

Open access Research Article 10.9734/ACSJ/2011/214

Silica Sulphuric Acid Catalyzed Fischer Esterification Reaction under Solventless Condition: A Novel Green Chemical Reaction

A. Rajendran & C. Karthikeyan · Chemical Science International Journal · 2011

Objectives: The science of chemistry has matured, and green chemistry emphasizes the creative use and design of chemicals. The main objective of this work is to carryout Fisher esterification reactions using silica sulphuric acid ionic liquid in such a way that they have little o...

Open access Research Article 10.9734/ACSJ/2011/264

A Facile Tandem Protocol for the Crossed Aldol Condensation in SiO2.OSO3H Ionic Liquid under Solventless Condition

A. Rajendran & C. Karthikeyan · Chemical Science International Journal · 2011

Objectives: Removing organic solvents in chemical synthesis is important in the drive towards benign chemical technologies. Organic solvents are high on the list of toxic compounds due to the problems in containing volatile compounds and the sheer large volume of them used in ind...

Open access Research Article 10.9734/ACSJ/2011/263