Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2)
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2009
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A zinc phosphate with the composition [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2), containing the doubly protonated 1,2-diaminopropane (abbr. HDAP), was synthesized by hydrothermal crystallization of zinc nitrate, phosphoric acid, 1,2-diaminopropane and trimethylenedipiperidine. The single crystal analysis shows a layered inorganic-organic structure built up of a sandwich-like motif of alternating inorganic layers and HDAP cations (trimethylenedipiperidine not being a constituent of the structure). The HDAP species are found to be disordered and serve as bridges between two adjacent inorganic layers which are separated by 3.95 angstrom. The bridging interaction occurs via a hydrogen-bonding network. The inorganic layer features a pattern of four-membered rings involving two ZnO4 and two PO4 tetrahedra connected by sharing O atoms. Thermal analysis shows that the compound is stable up to 370 degrees C and that the thermal decomposition of HDAP occurs in two steps between 370 and 460 degrees C, caus...ing the collapse of the structure. The first decomposition step corresponds to ammonia removal which proceeds with a high activation energy (E-a = 282 kJ mol (1)). The high E-a value is mainly attributed to strong electrostatic interactions between organic cations and anionic inorganic layers, the disruption of the interactions being the main reason for structural collapse after the HDAP removal.
Ključne reči:
Hydrothermal crystallization / Layered inorganic-organic structure / Kinetics of thermal degradation / Zinc phosphate / Open-framework solidsIzvor:
Inorganica Chimica Acta, 2009, 362, 6, 1991-1995Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Serbian Ministry of Science and Environmental Protection
- Slovenian Ministry of Higher Education Science and Technology
DOI: 10.1016/j.ica.2008.09.020
ISSN: 0020-1693
WoS: 000265299200048
Scopus: 2-s2.0-64649089049
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Stojaković, Đorđe AU - Rajić, Nevenka AU - Rakić, Vesna M. AU - Zabukovec-Logar, Nataša AU - Kaučič, Venčeslav PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1519 AB - A zinc phosphate with the composition [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2), containing the doubly protonated 1,2-diaminopropane (abbr. HDAP), was synthesized by hydrothermal crystallization of zinc nitrate, phosphoric acid, 1,2-diaminopropane and trimethylenedipiperidine. The single crystal analysis shows a layered inorganic-organic structure built up of a sandwich-like motif of alternating inorganic layers and HDAP cations (trimethylenedipiperidine not being a constituent of the structure). The HDAP species are found to be disordered and serve as bridges between two adjacent inorganic layers which are separated by 3.95 angstrom. The bridging interaction occurs via a hydrogen-bonding network. The inorganic layer features a pattern of four-membered rings involving two ZnO4 and two PO4 tetrahedra connected by sharing O atoms. Thermal analysis shows that the compound is stable up to 370 degrees C and that the thermal decomposition of HDAP occurs in two steps between 370 and 460 degrees C, causing the collapse of the structure. The first decomposition step corresponds to ammonia removal which proceeds with a high activation energy (E-a = 282 kJ mol (1)). The high E-a value is mainly attributed to strong electrostatic interactions between organic cations and anionic inorganic layers, the disruption of the interactions being the main reason for structural collapse after the HDAP removal. PB - Elsevier Science Sa, Lausanne T2 - Inorganica Chimica Acta T1 - Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2) EP - 1995 IS - 6 SP - 1991 VL - 362 DO - 10.1016/j.ica.2008.09.020 ER -
@article{ author = "Stojaković, Đorđe and Rajić, Nevenka and Rakić, Vesna M. and Zabukovec-Logar, Nataša and Kaučič, Venčeslav", year = "2009", abstract = "A zinc phosphate with the composition [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2), containing the doubly protonated 1,2-diaminopropane (abbr. HDAP), was synthesized by hydrothermal crystallization of zinc nitrate, phosphoric acid, 1,2-diaminopropane and trimethylenedipiperidine. The single crystal analysis shows a layered inorganic-organic structure built up of a sandwich-like motif of alternating inorganic layers and HDAP cations (trimethylenedipiperidine not being a constituent of the structure). The HDAP species are found to be disordered and serve as bridges between two adjacent inorganic layers which are separated by 3.95 angstrom. The bridging interaction occurs via a hydrogen-bonding network. The inorganic layer features a pattern of four-membered rings involving two ZnO4 and two PO4 tetrahedra connected by sharing O atoms. Thermal analysis shows that the compound is stable up to 370 degrees C and that the thermal decomposition of HDAP occurs in two steps between 370 and 460 degrees C, causing the collapse of the structure. The first decomposition step corresponds to ammonia removal which proceeds with a high activation energy (E-a = 282 kJ mol (1)). The high E-a value is mainly attributed to strong electrostatic interactions between organic cations and anionic inorganic layers, the disruption of the interactions being the main reason for structural collapse after the HDAP removal.", publisher = "Elsevier Science Sa, Lausanne", journal = "Inorganica Chimica Acta", title = "Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2)", pages = "1995-1991", number = "6", volume = "362", doi = "10.1016/j.ica.2008.09.020" }
Stojaković, Đ., Rajić, N., Rakić, V. M., Zabukovec-Logar, N.,& Kaučič, V.. (2009). Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2). in Inorganica Chimica Acta Elsevier Science Sa, Lausanne., 362(6), 1991-1995. https://doi.org/10.1016/j.ica.2008.09.020
Stojaković Đ, Rajić N, Rakić VM, Zabukovec-Logar N, Kaučič V. Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2). in Inorganica Chimica Acta. 2009;362(6):1991-1995. doi:10.1016/j.ica.2008.09.020 .
Stojaković, Đorđe, Rajić, Nevenka, Rakić, Vesna M., Zabukovec-Logar, Nataša, Kaučič, Venčeslav, "Structure and thermal behavior of the layered zincophosphate [NH3-CH2-CH(NH3)-CH3](ZnPO4)(2)" in Inorganica Chimica Acta, 362, no. 6 (2009):1991-1995, https://doi.org/10.1016/j.ica.2008.09.020 . .