 |
Preparation and the Standard Enthalpy of Formation of 2-Amino-4,6-dimethoxypyrimidine and the Related Complexes of Copper
Qing, W., Xuwu, Y., Shengli, G. and Qizhen, S. Preparation and the Standard Enthalpy of Formation of 2-Amino-4,6-dimethoxypyrimidine and the Related Complexes of Copper Chemical Papers, Vol.57, No. 2, 2003, 97-101
|
|
|
Document type:
|
Článok z časopisu / Journal Article |
|
Collection:
|
Chemical papers
|
| |
| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n572a97.pdf
|
572a97.pdf |
application/pdf |
168.29KB |
0 |
| Author(s) |
Qing, W.
Xuwu, Y.
Shengli, G.
Qizhen, S.
|
| Title |
Preparation and the Standard Enthalpy of Formation of 2-Amino-4,6-dimethoxypyrimidine and the Related Complexes of Copper
|
| Journal name |
Chemical Papers
|
| Publication date |
2003
|
| Year available |
2003
|
| Volume number |
57
|
| Issue number |
2
|
| ISSN |
0366-6352
|
| Start page |
97
|
| End page |
101
|
| Place of publication |
Poland
|
| Publisher |
Versita
|
| Collection year |
2003
|
| Language |
english
|
| Subject |
250000 Chemical Sciences
250200 Inorganic Chemistry
|
| Abstract/Summary |
The complexes of hydrous copper chloride and copper nitrate with 2-amino-4,6-dimethoxypyrimidine (AMP) in the mole ratio of 1:2 were prepared through reflux in alcohol. The compositions of the complexes Cu(AMP)2Cl2 and Cu(AMP)2(NO3)2 were determined by chemical and elemental analyses. The bonds between Cu2+ and AMP were investigated by IR, XPS, 1H NMR and the structures of the complexes were presumed. The constant-volume combustion energies of the ligand and the complexes, ΔcE, were determined by a precise rotating bomb calorimeter at 298.15 K. They were (−3340.01 ± 1.54) kJ mol−1, (−5684.22 ± 2.24) kJ mol−1, and (−6526.47 ± 4.59) kJ mol−1. Their standard enthalpies of combustion, ΔcH0m , and standard enthalpies of formation, ΔfH0m , were calculated. They were (−3339.39 ± 1.54) kJ mol−1, (−5678.02 ± 2.24) kJ mol−1, (−6516.55 ± 4.59) kJ mol−1 and (−307.91 ± 1.74) kJ mol−1, (−1670.59 ± 2.73) kJ mol−1, (−933.27 ± 4.85) kJ mol−1.
|
|
|
|
