CAS 69021-86-9
Linear Formula: (C3H7C5H4)3Pr
MDL Number: MFCD00145484

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(2N) 99% Tris(isopropylcyclopentadienyl)praseodymium(III)
PR-TCI-02 Pricing
(3N) 99.9% Tris(isopropylcyclopentadienyl)praseodymium(III)
PR-TCI-03 Pricing
(4N) 99.99% Tris(isopropylcyclopentadienyl)praseodymium(III)
PR-TCI-04 Pricing
(5N) 99.999% Tris(isopropylcyclopentadienyl)praseodymium(III)
PR-TCI-05 Pricing


Compound Formula C24H33Pr
Molecular Weight 462.44
Appearance Light green crystals
Melting Point N/A
Boiling Point N/A
Density N/A
Monoisotopic Mass 462.166 g/mol
Exact Mass 462.166 g/mol

Health & Safety Info  |  MSDS / SDS

Signal Word Warning
Hazard Statements H315-H319-H335
Hazard Codes Xi
Precautionary Statements P231-P222-P305+P351+P338-P403+P233-P422-P501
Transport Information N/A


Tris(isopropylcyclopentadienyl)praseodymium(III) is one of numerous organo-metallic compounds sold by American Elements under the trade name AE Organo-Metallics™ for uses requiring non-aqueous solubility such as recent solar energy and water treatment applications. Tris(isopropylcyclopentadienyl)praseodymium(III) is generally immediately available in most volumes, including bulk quantities. American Elements can produce materials to custom specifications by request, in addition to custom compositions for commercial and research applications and new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as numerous other machined shapes and in the form of solutions and organometallic compounds. Ultra high purity and high purity forms also include metal powder, submicron powder and nanomaterials, targets for thin film deposition, and pellets for chemical vapor deposition (CVD) and physical vapor deposition (PVD) applications. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available, as is additional technical and safety (MSDS) data. Please contact us for information on lead time and pricing above.


1, 3-Cyclopentadiene, 1-(1-methylethyl)-, praseodymium complex; Tris(isopropylcyclopentadienyl)praseodymium, Tris(i-propylcyclopentadienyl)praseodymium

Chemical Identifiers

Linear Formula (C3H7C5H4)3Pr
CAS 69021-86-9
Pubchem CID 57369823
MDL Number MFCD00145484
EC No. N/A
IUPAC Name praseodymium; 5-propan-2-ylcyclopenta-1,3-diene
SMILES CC(C)[C-]1C=CC=C1.CC(C)[C-]1C=CC=C1.CC(C)[C-]1C=CC=C1.[Pr]
InchI Identifier InChI=1S/3C8H11.Pr/c3*1-7(2)8-5-3-4-6-8;/h3*3-7H,1-2H3;/q3*-1;

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information


See more Praseodymium products. Praseodymium (atomic symbol: Pr, atomic number: 59) is a Block F, Group 3, Period 6 element with an atomic weight of 140.90765. Praseodymium Bohr Model The number of electrons in each of praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electron configuration is [Xe]4f3 6s2. The praseodymium atom has a radius of 182 pm and a Van der Waals radius of 239 pm. Praseodymium resembles the typical trivalent rare earths, however, it will exhibit a +4 state when stabilized in a zirconia host. Elemental PraseodymiumUnlike other rare-earth metals, which show antiferromagnetic and / or ferromagnetic ordering at low temperatures, praseodymium is paramagnetic at any temperature above 1 K. Praseodymium is found in the minerals monazite and bastnasite. Praseodymium was discovered by Carl Auer von Welsbach in 1885. The origin of the element name comes from the Greek words prasios didymos, meaning green twin.

Recent Research

Molecular distribution and toxicity assessment of praseodymium by Spirodela polyrrhiza., Xu, Ting, Su Chunlei, Hu Dan, Li Feifei, Lu Qianqian, Zhang Tingting, and Xu Qinsong , J Hazard Mater, 2016 Mar 17, Volume 312, p.132-140, (2016)

Laser-diode pumped self-mode-locked praseodymium visible lasers with multi-gigahertz repetition rate., Zhang, Yuxia, Yu Haohai, Zhang Huaijin, Di Lieto Alberto, Tonelli Mauro, and Wang Jiyang , Opt Lett, 2016 Jun 15, Volume 41, Issue 12, p.2692-5, (2016)

Optical analysis of RE(3+) (RE = Pr(3) (+) , Er(3) (+) and Nd(3) (+) ):cadmium lead boro tellurite glasses., Giridhar, P, M Reddy Bhushana, Neelima G, Ramanaiah R, K Reddy Nagamuni, V Reddy Sahadeva, and B Reddy Sudhakar , Luminescence, 2016 Jan 27, (2016)

Sol-Gel-Prepared Nanoparticles of Mixed Praseodymium Cobaltites-Ferrites., Pekinchak, Olga, Vasylechko Leonid, Lutsyuk Iryna, Vakhula Yaroslav, Prots Yuri, and Carrillo-Cabrera Wilder , Nanoscale Res Lett, 2016 Dec, Volume 11, Issue 1, p.75, (2016)

alpha-Regioselective Barbier Reaction of Carbonyl Compounds and Allyl Halides Mediated by Praseodymium., Wu, San, Li Ying, and Zhang Songlin , J Org Chem, 2016 Aug 4, (2016)

Extensive Parallelism between Crystal Parameters and Magnetic Phase Transitions of Unusually Ferromagnetic Praseodymium Manganite Nanoparticles., Sadhu, Anustup, Salunke Hemant G., Shivaprasad Sonnada M., and Bhattacharyya Sayan , Inorg Chem, 2016 Aug 2, (2016)

Measuring bandgap states in individual non-stoichiometric oxide nanoparticles using monochromated STEM EELS: The Praseodymium-ceria case., Bowman, W J., March K, Hernandez C A., and Crozier P A. , Ultramicroscopy, 2016 Apr 27, Volume 167, p.5-10, (2016)

Pentavalent Lanthanide Compounds: Formation and Characterization of Praseodymium(V) Oxides., Zhang, Qingnan, Hu Shu-Xian, Qu Hui, Su Jing, Wang Guanjun, Lu Jun-Bo, Chen Mohua, Zhou Mingfei, and Li Jun , Angew Chem Int Ed Engl, 2016 Apr 21, (2016)

Gold nanoparticles as a saturable absorber for visible 635 nm Q-switched pulse generation., Wu, Duanduan, Peng Jian, Cai Zhiping, Weng Jian, Luo Zhengqian, Chen Nan, and Xu Huiying , Opt Express, 2015 Sep 7, Volume 23, Issue 18, p.24071-6, (2015)

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