Unraveling the Decomposition Process of Lead(II) Acetate : Anhydrous Polymorphs, Hydrates, and Byproducts and Room Temperature Phosphorescence
(2016) In Inorganic Chemistry 55(17). p.8576-8586- Abstract
Lead(II) acetate [Pb(Ac)2, where Ac = acetate group (CH3-COO-)2] is a very common salt with many and varied uses throughout history. However, only lead(II) acetate trihydrate [Pb(Ac)2·3H2O] has been characterized to date. In this paper, two enantiotropic polymorphs of the anhydrous salt, a novel hydrate [lead(II) acetate hemihydrate: Pb(Ac)2·1/2H2O], and two decomposition products [corresponding to two different basic lead(II) acetates: Pb4O(Ac)6 and Pb2O(Ac)2] are reported, with their structures being solved for the first time. The compounds present a variety of molecular... (More)
Lead(II) acetate [Pb(Ac)2, where Ac = acetate group (CH3-COO-)2] is a very common salt with many and varied uses throughout history. However, only lead(II) acetate trihydrate [Pb(Ac)2·3H2O] has been characterized to date. In this paper, two enantiotropic polymorphs of the anhydrous salt, a novel hydrate [lead(II) acetate hemihydrate: Pb(Ac)2·1/2H2O], and two decomposition products [corresponding to two different basic lead(II) acetates: Pb4O(Ac)6 and Pb2O(Ac)2] are reported, with their structures being solved for the first time. The compounds present a variety of molecular arrangements, being 2D or 1D coordination polymers. A thorough thermal analysis, by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), was also carried out to study the behavior and thermal data of the salt and its decomposition process, in inert and oxygenated atmospheres, identifying the phases and byproducts that appear. The complex thermal behavior of lead(II) acetate is now solved, finding the existence of another hydrate, two anhydrous enantiotropic polymorphs, and some byproducts. Moreover, some of them are phosphorescent at room temperature. The compounds were studied by TGA, DSC, X-ray diffraction, and UV-vis spectroscopy.
(Less)
- author
- Martinez, Francisco
LU
; Ramos-Riesco, Miguel
; Rodríguez-Cheda, José A.
; Cucinotta, Fabio
; Matesanz, Emilio
; Miletto, Ivana
; Gianotti, Enrica
; Marchese, Leonardo
and Matej, Zdenek
LU
- organization
- publishing date
- 2016-09-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Inorganic Chemistry
- volume
- 55
- issue
- 17
- pages
- 11 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:27548299
- wos:000382713900042
- scopus:84986193753
- ISSN
- 0020-1669
- DOI
- 10.1021/acs.inorgchem.6b01116
- language
- English
- LU publication?
- yes
- id
- c8021aba-802a-4c13-bc4a-88e0b5ee0266
- date added to LUP
- 2016-11-17 10:55:59
- date last changed
- 2025-02-08 18:16:59
@article{c8021aba-802a-4c13-bc4a-88e0b5ee0266, abstract = {{<p>Lead(II) acetate [Pb(Ac)<sub>2</sub>, where Ac = acetate group (CH<sub>3</sub>-COO<sup>-</sup>)<sub>2</sub>] is a very common salt with many and varied uses throughout history. However, only lead(II) acetate trihydrate [Pb(Ac)<sub>2</sub>·3H<sub>2</sub>O] has been characterized to date. In this paper, two enantiotropic polymorphs of the anhydrous salt, a novel hydrate [lead(II) acetate hemihydrate: Pb(Ac)<sub>2</sub>·<sup>1</sup>/<sub>2</sub>H<sub>2</sub>O], and two decomposition products [corresponding to two different basic lead(II) acetates: Pb<sub>4</sub>O(Ac)<sub>6</sub> and Pb<sub>2</sub>O(Ac)<sub>2</sub>] are reported, with their structures being solved for the first time. The compounds present a variety of molecular arrangements, being 2D or 1D coordination polymers. A thorough thermal analysis, by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), was also carried out to study the behavior and thermal data of the salt and its decomposition process, in inert and oxygenated atmospheres, identifying the phases and byproducts that appear. The complex thermal behavior of lead(II) acetate is now solved, finding the existence of another hydrate, two anhydrous enantiotropic polymorphs, and some byproducts. Moreover, some of them are phosphorescent at room temperature. The compounds were studied by TGA, DSC, X-ray diffraction, and UV-vis spectroscopy.</p>}}, author = {{Martinez, Francisco and Ramos-Riesco, Miguel and Rodríguez-Cheda, José A. and Cucinotta, Fabio and Matesanz, Emilio and Miletto, Ivana and Gianotti, Enrica and Marchese, Leonardo and Matej, Zdenek}}, issn = {{0020-1669}}, language = {{eng}}, month = {{09}}, number = {{17}}, pages = {{8576--8586}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Inorganic Chemistry}}, title = {{Unraveling the Decomposition Process of Lead(II) Acetate : Anhydrous Polymorphs, Hydrates, and Byproducts and Room Temperature Phosphorescence}}, url = {{http://dx.doi.org/10.1021/acs.inorgchem.6b01116}}, doi = {{10.1021/acs.inorgchem.6b01116}}, volume = {{55}}, year = {{2016}}, }