On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid
Апстракт
The reaction of a 1:3 molar mixture of the monosodium salt of 4-sulfophthalic acid and phthalic acod, carried out in the presence of NH4Cl, urea, CuSO4 5H2O, and (NH4)2MoO4, does not yield the mono-substituted derivative, i.e., the sodium salt of copper-phthalocyanine-4-sulfonic acid (mSCuPc) but a 1:3 mixture of tetrasodium salt of copper-phthalocyanine-4-sulfonic acid-4,4',4'',4'''-tetrasulfonic acid (tSCuPc) and copper phthalocyanine (CuPc). However, quantum-mechanical calculations indicate that mSCuPc should be energetically favoured over the equivalent mixture of tSCuPc and CuPc. The preferential formation of the latter mixture has been attributed to kinetic factors arising from simultaneous presence of ionic and covalent species in the reaction medium.
Извор:
Journal of the Serbian Chemical Society, 1994, 557-561Издавач:
- Serbian Chemical Society
Финансирање / пројекти:
- Research Fund of Serbia
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Stojaković, Đorđe AU - Rajić, Nevenka PY - 1994 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6395 AB - The reaction of a 1:3 molar mixture of the monosodium salt of 4-sulfophthalic acid and phthalic acod, carried out in the presence of NH4Cl, urea, CuSO4 5H2O, and (NH4)2MoO4, does not yield the mono-substituted derivative, i.e., the sodium salt of copper-phthalocyanine-4-sulfonic acid (mSCuPc) but a 1:3 mixture of tetrasodium salt of copper-phthalocyanine-4-sulfonic acid-4,4',4'',4'''-tetrasulfonic acid (tSCuPc) and copper phthalocyanine (CuPc). However, quantum-mechanical calculations indicate that mSCuPc should be energetically favoured over the equivalent mixture of tSCuPc and CuPc. The preferential formation of the latter mixture has been attributed to kinetic factors arising from simultaneous presence of ionic and covalent species in the reaction medium. PB - Serbian Chemical Society T2 - Journal of the Serbian Chemical Society T1 - On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid EP - 561 SP - 557 UR - https://hdl.handle.net/21.15107/rcub_technorep_6395 ER -
@article{ author = "Stojaković, Đorđe and Rajić, Nevenka", year = "1994", abstract = "The reaction of a 1:3 molar mixture of the monosodium salt of 4-sulfophthalic acid and phthalic acod, carried out in the presence of NH4Cl, urea, CuSO4 5H2O, and (NH4)2MoO4, does not yield the mono-substituted derivative, i.e., the sodium salt of copper-phthalocyanine-4-sulfonic acid (mSCuPc) but a 1:3 mixture of tetrasodium salt of copper-phthalocyanine-4-sulfonic acid-4,4',4'',4'''-tetrasulfonic acid (tSCuPc) and copper phthalocyanine (CuPc). However, quantum-mechanical calculations indicate that mSCuPc should be energetically favoured over the equivalent mixture of tSCuPc and CuPc. The preferential formation of the latter mixture has been attributed to kinetic factors arising from simultaneous presence of ionic and covalent species in the reaction medium.", publisher = "Serbian Chemical Society", journal = "Journal of the Serbian Chemical Society", title = "On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid", pages = "561-557", url = "https://hdl.handle.net/21.15107/rcub_technorep_6395" }
Stojaković, Đ.,& Rajić, N.. (1994). On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid. in Journal of the Serbian Chemical Society Serbian Chemical Society., 557-561. https://hdl.handle.net/21.15107/rcub_technorep_6395
Stojaković Đ, Rajić N. On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid. in Journal of the Serbian Chemical Society. 1994;:557-561. https://hdl.handle.net/21.15107/rcub_technorep_6395 .
Stojaković, Đorđe, Rajić, Nevenka, "On the possibility of the direct preparation of the sodium salt of copper phthalocyanine-4-sulfonic acid" in Journal of the Serbian Chemical Society (1994):557-561, https://hdl.handle.net/21.15107/rcub_technorep_6395 .