Pentaethylenehexamine (abbreviated PEHA) is an organic amine. It is composed of five ethylene groups -CH2CH2- joined together in a chain by four secondary amine groups (-NH-) and terminated on each end by primary amine groups (-NH2). Pentaethylenehexamine is a hexadentate ligand, owing to the Lewis basicity of the six amine groups.[3] Pentaethylenehexamine is in the category of polyethyleneamines and is part of mixtures of these sold commercially.[2]
The infrared spectrum of pentaethylenehexamine salts show characteristics of the ammonium present. It has stretching modes, asymmetric and symmetric bending modes, but most useful absorption bands are due to rocking mode, where -NH3+ is at 810cm−1 and -NH2+- is at 768cm−1.[2]
1 2 3 4 5 Stapleton, Iw (1985). "A simple method of polyamine purification". Australian Journal of Chemistry. 38 (4): 633. doi:10.1071/CH9850633.
1 2 Tang, Chunying; Lu, Jialin; Han, Jingyu; Liu, Yun; Shen, Yali; Jia, Dingxian (October 2015). "Complexations of Ln(III) with SnS4H and Sn2S6: Solvothermal syntheses and characterizations of lanthanide coordination polymers with thiostannate and polyamine mixed ligands". Journal of Solid State Chemistry. 230: 118–125. Bibcode:2015JSSCh.230..118T. doi:10.1016/j.jssc.2015.06.008.
↑ Faucher, Santiago; Okrutny, Paul; Zhu, Shiping (1 January 2006). "Facile and Effective Purification of Polymers Produced by Atom Transfer Radical Polymerization via Simple Catalyst Precipitation and Microfiltration". Macromolecules. 39 (1): 3–5. Bibcode:2006MaMol..39....3F. doi:10.1021/ma051920a.
1 2 Satapathi, Smita; Choubey, Somnath; Bhar, Kishalay; Chattopadhyay, Soumi; Mitra, Partha; Slawin, Alexandra M.Z.; Ghosh, Barindra K. (April 2012). "A set of new coordination compounds of cadmium(II)/mercury(II) halides/pseudohalides containing polyamines: Syntheses involving in situ metal–ligand reactions, crystal structures and molecular properties". Inorganica Chimica Acta. 384: 37–46. doi:10.1016/j.ica.2011.11.022.
↑ Sulistyarti, Hermin; Kolev, Spas D. (July 2013). "Online ligand exchange in the determination of weak acid dissociable cyanide by gas diffusion-flow injection analysis". Microchemical Journal. 111: 103–107. doi:10.1016/j.microc.2013.01.008.
↑ Wang, Cheng-Chien; Wang, Chun-Chih (15 September 2005). "Synthesis and characterization of chelating resins with amino moieties and application on removal of copper(II) from EDTA complexes". Journal of Applied Polymer Science. 97 (6): 2457–2468. doi:10.1002/app.22019.
↑ Han, Jingyu; Liu, Yun; Tang, Chunying; Shen, Yali; Lu, Jialin; Zhang, Yong; Jia, Dingxian (April 2016). "Thioarsenate anions acting as ligands: Solvothermal syntheses, crystal structures and characterizations of transition metal complexes of thioarsenate and polyethyleneamine ligands". Inorganica Chimica Acta. 444: 36–42. doi:10.1016/j.ica.2016.01.027.
↑ Pienack, Nicole; Lühmann, Henning; Seidlhofer, Beatrix; Ammermann, Janina; Zeisler, Christoph; Danker, Felix; Näther, Christian; Bensch, Wolfgang (July 2014). "Six new tin–sulfur containing compounds obtained under solvothermal conditions". Solid State Sciences. 33: 67–72. Bibcode:2014SSSci..33...67P. doi:10.1016/j.solidstatesciences.2014.04.014.
↑ Liu, Shuzhen; Sun, Peipei; Shen, Yali; Han, Jingyu; Sun, Hui; Jia, Dingxian (1 April 2017). "Lanthanide(III) complexes with μ-SnSe4 and μ-Sn2Se6 linkers: solvothermal syntheses and properties of new Ln(III) selenidostannates decorated with linear polyamine". Zeitschrift für Naturforschung B. 72 (4): 231–240. doi:10.1515/znb-2016-0236. S2CID199060493.
↑ Liu, Yun; Tang, Chunying; Han, Jingyu; Shen, Yali; Lu, Jialin; Jia, Dingxian (October 2015). "The first lanthanide–tetraselenidoantimonate complexes with hexadentate polyamine co-ligand: Solvothermal syntheses of [Sm(peha)(SbSe4)]n and [Eu(peha)(SbSe4)]". Inorganic Chemistry Communications. 60: 103–106. doi:10.1016/j.inoche.2015.08.005.
↑ Sadeek, Sadeek A.; Moussa, Ewais M. M.; El-Sayed, Mohamed A.; Amine, Maisa M.; Abd El-Magied, Mahmoud O. (3 July 2014). "Uranium(VI) and Thorium(IV) Adsorption Studies on Chelating Resin Containing Pentaethylenehexamine as a Functional Group". Journal of Dispersion Science and Technology. 35 (7): 926–933. doi:10.1080/01932691.2013.809507. S2CID95983729.
↑ Parschová, Helena; Mištová, Eva; Jelínek, Luděk (July 6–9, 2008). Removal of heavy metals from strong anionic complexes(PDF). XXIII International Symposium on Physico-Chemical Methods of Separation. Toruń, Poland. pp.147–150. Retrieved 25 September 2021.
↑ Kothandaraman, Jotheeswari; Goeppert, Alain; Czaun, Miklos; Olah, George A.; Prakash, G. K. Surya (27 January 2016). "Conversion of CO2 from Air into Methanol Using a Polyamine and a Homogeneous Ruthenium Catalyst". Journal of the American Chemical Society. 138 (3): 778–781. Bibcode:2016JAChS.138..778K. doi:10.1021/jacs.5b12354. PMID26713663.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.