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HandWiki. Phthalocyanine Blue BN. Encyclopedia. Available online: https://encyclopedia.pub/entry/37634 (accessed on 27 July 2024).
HandWiki. Phthalocyanine Blue BN. Encyclopedia. Available at: https://encyclopedia.pub/entry/37634. Accessed July 27, 2024.
HandWiki. "Phthalocyanine Blue BN" Encyclopedia, https://encyclopedia.pub/entry/37634 (accessed July 27, 2024).
HandWiki. (2022, December 01). Phthalocyanine Blue BN. In Encyclopedia. https://encyclopedia.pub/entry/37634
HandWiki. "Phthalocyanine Blue BN." Encyclopedia. Web. 01 December, 2022.
Phthalocyanine Blue BN
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The content is sourced from: https://handwiki.org/wiki/Chemistry:Phthalocyanine_Blue_BN

Phthalocyanine Blue BN, also called by many names (EINECS 205-685-1), is a bright, crystalline, synthetic blue pigment from the group of phthalocyanine dyes. Its brilliant blue is frequently used in paints and dyes. It is highly valued for its superior properties such as light fastness, tinting strength, covering power and resistance to the effects of alkalis and acids. It has the appearance of a blue powder, insoluble in most solvents including water.

insoluble phthalocyanine alkalis

1. History

The discovery of metal phthalocyanines can be traced to the observation of intensely colored byproducts from reactions of benzene-1,2-dicarboxylic acid or its derivatives with sources of nitrogen and metals. CuPc (copper phthalocyanine) was first prepared in 1927 by the reaction of copper(I) cyanide and o-dibromobenzene, which mainly produces colorless phthalonitrile as well as an intensely blue by product. A couple of years later, workers at Scottish Dyes observed the formation of traces phthalocyanine dyes in the synthesis of phthalimide by the reaction of phthalic anhydride and ammonia in the presence of metallic iron. These findings led to the blue pigment sold under the trade name Monastral. Industrial production commenced in 1935 at ICI, I.G. Farbenindustrie, and DuPont.[1]

Difficulty was experienced in forming stable dispersions with the first alpha forms, especially in mixtures with rutile titanium, where the blue pigment tended to flocculate. The beta form was more stable, as was the improved stabilized alpha form. Today, there are even more isomeric forms available.

2. Synonyms and Trade Names

The substance, chemical name (29H,31H-phthalocyaninato(2−)-N29,N30,N31,N32)copper(II) (or copper phthalocyanine),[2] is also known as monastral blue, phthalo blue, helio blue,[3] thalo blue, Winsor blue,[4] phthalocyanine blue, C.I. Pigment Blue 15:2,[5][6] copper phthalocyanine blue,[7] copper tetrabenzoporphyrazine,[8] Cu-phthaloblue,[9] P.B.15.2,[10][11][12] C.I. 74160,[13][14][15] and British Rail Blue.[16] Numerous other trade names and synonyms exist.[17] The abbreviation "CuPc" is also used.[18]

3. Applications

3.1. Catalysis

Metal phthalocyanines have long been examined as catalysts for redox reactions. Areas of interest are the oxygen reduction reaction and the sweetening of gas streams by removal of hydrogen sulfide.

3.2. Colorant

Due to its stability, phthalo blue is also used in inks, coatings, and many plastics. The pigment is insoluble and has no tendency to migrate in the material. It is a standard pigment used in printing ink and the packaging industry. Industrial production was of the order of 10,000 tonnes per annum in the 1980s and 1990s in Japan alone.[17] The pigment is the highest volume pigment produced.[19]

All major artists' pigment manufacturers produce variants of copper phthalocyanine, designated color index PB15 (blue) and color indexes PG7 and PG36 (green).

A common component on the artist's palette, phthalo blue is a cool blue with a bias towards green. It has intense tinting strength and easily overpowers the mix when combined with other colors. It is a transparent staining color and can be applied using glazing techniques.

It's present in a wide variety of products,[20] such as color deposition hair conditioner,[21] eye patches, parfum, shampoo, skin-care products, soap, sunscreen, tattoo ink[22] and toothpaste.[23]

4. Research

CuPc has often been investigated in the context of molecular electronics. It is potentially suited for organic solar cells because of its high chemical stability and uniform growth.[24][25][26] CuPc usually plays the role of the electron donor in donor/acceptor based solar cells. One of the most common donor/acceptor architectures is CuPc/C60 (buckminsterfullerene) which rapidly became a model system for the study of small organic molecules.[27][28] Photon to electron conversion efficiency in such system reaches approximately 5%.

CuPc has also been investigated as a component of organic field-effect transistors.[29] Copper Phthalocyanine (CuPc) has been suggested for data storage in quantum computing, due to the length of time its electrons can remain in superposition.[30]

CuPc has also been investigated in the context of quantum computing.[31] CuPc can be easily processed into a thin film for use in device fabrication, which makes it an attractive qubit candidate.[32]

5. Derivatives

Approximately 25% of all artificial organic pigments are phthalocyanine derivatives.[33] Copper phthalocyanine dyes are produced by introducing solubilizing groups, such as one or more sulfonic acid functions. These dyes find extensive use in various areas of textile dyeing (Direct dyes for cotton), for spin dyeing and in the paper industry. Direct blue 86 is the sodium salt of CuPc-sulfonic acid, whereas direct blue 199 is the quaternary ammonium salt of the CuPc-sulfonic acid. The quaternary ammonium salts of these sulfonic acids are used as solvent dyes because of their solubility in organic solvents, such as Solvent Blue 38 and Solvent Blue 48. The dye derived from cobalt phthalocyanine and an amine is Phthalogen Dye IBN. 1,3-Diiminoisoindolene, the intermediate formed during phthalocyanine manufacture, used in combination with a copper salt affords the dye GK 161. Phthalocyanine Blue BN is also used as a source material for manufacture of Phthalocyanine Green G.

6. Structure, Reactivity and Properties

Portion of crystal structure of CuPc, highlighting its slipped-stack packing motif [34]. https://handwiki.org/wiki/index.php?curid=1188840

Phthalocyanine blue is a complex of copper(II) with the conjugate base of phthalocyanine, i.e. Cu2+Pc2−. The description is analogous to that for copper porphyrins, which are also formally derived by double deprotonation of porphyrins. CuPc belongs to the D4h point group. It is paramagnetic with one unpaired electron per molecule.

The substance is practically insoluble in water (< 0.1 g/100 ml at 20 °C (68 °F)),[2] but soluble in concentrated sulfuric acid.[17] Density of the solid is ~1.6 g/cm3.[17] The color is due to a π–π* electronic transition, with λmax ≈ 610 nm.[35]

6.1. Crystalline Phases

CuPc crystallizes in various forms (polymorphs). Five different polymorphs have been identified:[36][37][38][39] phases α, β, η, γ and χ. The two most common structures in CuPc are the β phase and the metastable α phase. Those phases can be distinguished by the overlap of their neighboring molecules. The α phase has a larger overlap and thus, a smaller Cu-Cu spacing (~3.8 Å) compared to the β phase (~4.8 Å).[40]

6.2. Toxicity and Hazards

The compound is non-biodegradeable, but not toxic to fish or plants.[17] No specific dangers have been associated with this compound.[41] Oral LD50 in mammals is estimated to be greater than 5 g per kg, with no ill effects found at that level of ingestion,[17] for chronic ingestion estimated dose of low concern was 0.2 mg/kg per day in rats.[17] No evidence indicates carcinogenic effects.[17] Sulfonated phthalocyanine has been found to cause neuroanatomical defects in developing chicken embryos when injected directly into incubating eggs.[42]

References

  1. Löbbert, Gerd (2000). "Ullmann's Encyclopedia of Industrial Chemistry". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_213. . https://dx.doi.org/10.1002%2F14356007.a20_213
  2. Copper phthalocyanine chemblink.com http://www.chemblink.com/products/147-14-8.htm
  3. Toxic Substances Control Act Chemical Substance Inventory: volume 2
  4. Spectroscopic Properties of Inorganic and Organometallic Compounds: volume 40
  5. Chem Product Index by Friedrich W. Derz
  6. Coloring of Plastics: Fundamentals, r. Robert A. Charvat
  7. Paint and Coating Testing Manual, e. Joseph V. Koleske
  8. User guide and indices to the initial inventory, substance name index, US EPA
  9. Industrial Organic Pigments: Production, Crystal Structures, Properties, Applications by Klaus Hunger & Martin U. Schmidt
  10. The Porphyrin Handbook: Applications of Phthalocyanines, e. Karl Kadish, Kevin M. Smith & Roger Guilard
  11. Tattoo Inks: Analysis, Pigments, Legislation by Gerald Prior
  12. Pigment + Füllstoff: Tabellen by Olaf Lückert
  13. Material Safety Data Sheets Service 7:89, Information Handling Services
  14. Coloring of Food, Drugs, and Cosmetics by Gisbert Otterstätter
  15. Chemical Formulation: An Overview of Surfactant Based Chemical Preparations Used in Everyday Life by Anthony E. Hargreaves
  16. Waterloo Station: A History of London's busiest terminus by Robert Lordan
  17. COPPER PHTHALOCYANINE, CAS No.: 147-14-8 inchem.org http://www.inchem.org/documents/sids/sids/147148.pdf
  18. e.g. Structural and Transport Properties of Copper Phthalocyanine (CuPc) Thin Films www.egmrs.org http://www.egmrs.org/EJS/PDF/vo252/307.pdf
  19. Gregory, Peter (2000). "Industrial applications of phthalocyanines". Journal of Porphyrins and Phthalocyanines (worldscinet.com) 4 (4): 432–437. doi:10.1002/(SICI)1099-1409(200006/07)4:4<432::AID-JPP254>3.0.CO;2-N. http://www.worldscinet.com/jpp/04/0404/S1088424600000669.html. 
  20. https://incidecoder.com/ingredients/ci-74160
  21. https://kosterkeunen.com/formulas/color-deposition-conditioner-ultra-violet#post-5632
  22. Forensic Analysis of Tattoos and Tattoo Inks by Michelle D. Miranda, page 163: Muddy Water Blue
  23. https://hautschutzengel.de/_/produkt/51660.html#h2tab1a
  24. Szybowicz, M (October 2004). "High temperature study of FT-IR and Raman scattering spectra of vacuum deposited CuPc thin films". Journal of Molecular Structure 704 (1–3): 107–113. doi:10.1016/j.molstruc.2004.01.053. Bibcode: 2004JMoSt.704..107S.  https://dx.doi.org/10.1016%2Fj.molstruc.2004.01.053
  25. Wojdyla, Michal; Derkowska, Beata; Bala, Waclaw Bala (2005). "Lock-in phase analysis of copper phthalocyanine photoabsorption spectrum". Optica Applicata 35 (3): 561–571. 
  26. Bala, M; Wojdyla, M; Rebarz, M; Szybowic, M; Drozdowski, M; Grodzicki, A; Piszczek, P (2009). "Influence of central metal atom in MPc (M = Cu, Zn, Mg, Co) on Raman, FT-IR, absorbance, reflectance, and photoluminescence spectra". J. Optoelectron. Adv. M. 11 (3): 264–269. 
  27. Askat E, Jailaubekov (2013). "Hot charge-transfer excitons set the time limit for charge separation at donor/acceptor interfaces in organic photovoltaics". Nature Materials 12 (1): 66–73. doi:10.1038/nmat3500. PMID 23223125. Bibcode: 2013NatMa..12...66J.  https://dx.doi.org/10.1038%2Fnmat3500
  28. Xin, Li (January 2013). "CuPc/C60 bulk heterojunction photovoltaic cells with evidence of phase segregation". Organic Electronics 14: 250–254. doi:10.1016/j.orgel.2012.10.041.  https://dx.doi.org/10.1016%2Fj.orgel.2012.10.041
  29. Chaidogiannos, G.; Petraki, F.; Glezos, N.; Kennou, S.; Nešpůrek, S. (2009). "Low voltage operating OFETs based on solution-processed metal phthalocyanines". Applied Physics A 96 (3): 763. doi:10.1007/s00339-009-5268-1. Bibcode: 2009ApPhA..96..763C.  https://dx.doi.org/10.1007%2Fs00339-009-5268-1
  30. New material for quantum computing discovered out of the blue. phys.org. October 27, 2013 http://phys.org/news/2013-10-material-quantum-blue.html
  31. Warner, Marc (October 26, 2013). "New Material for Quantum Computing Discovered Out of the Blue". Nature. https://www.sciencedaily.com/releases/2013/10/131027185206.htm. 
  32. Quenqua, Douglas (November 4, 2013). "A Key to Quantum Computing, Close to Home". The New York Times. https://www.nytimes.com/2013/11/05/science/a-key-to-quantum-computing-close-to-home.html. 
  33. Gerd Löbbert "Phthalocyanines" in Ullmann's Encyclopedia of Industrial Chemistry, 2002, Wiley-VCH, Weinheim. doi: 10.1002/14356007.a20_213. https://doi.org/10.1002%2F14356007.a20_213
  34. P.Erk, H.Hengelsberg, M.F.Haddow, R.van Gelder (2004). "The innovative momentum of crystal engineering". CrystEngComm 6 (78): 474. doi:10.1039/b409282a.  https://dx.doi.org/10.1039%2Fb409282a
  35. H. S. Rzepa, www.ch.imperial.ac.uk/rzepa/blog/?p=3641, Accessed: 2011-03-08. (Archived by WebCite® at https://www.webcitation.org/5x2Q0jeBj) http://www.ch.imperial.ac.uk/rzepa/blog/?p=3641
  36. James H., Sharp; Martin, Abkowitz (1973). "Dimeric Structure of a Copper Phthalocyanine Polymorph". J. Phys. Chem. 77 (11): 477–481. doi:10.1021/j100623a012.  https://dx.doi.org/10.1021%2Fj100623a012
  37. Jacques M., Assour (1965). "On the Polymorphic Modifications of Phthalocyanines". J. Phys. Chem. 69 (7): 2295–2299. doi:10.1021/j100891a026.  https://dx.doi.org/10.1021%2Fj100891a026
  38. A.K., Hassan; R.D., Gould (2006). "Structural Studies of Thermally Evaporated Thin Films of Copper Phthalocyanine". Physica Status Solidi A 132 (1): 91–101. doi:10.1002/pssa.2211320110. Bibcode: 1992PSSAR.132...91H.  https://dx.doi.org/10.1002%2Fpssa.2211320110
  39. Hai, Wang; Soumaya, Mauthoor; Salahud, Din; Jules A., Gardener; Rio, Chang; Marc, Warner; Gabriel, Aeppli; David W., McComb et al. (June 7, 2010). "Ultralong Copper Phthalocyanine Nanowires with New Crystal Structure and Broad Optical Absorption". ACS Nano 4 (7): 3921–3926. doi:10.1021/nn100782w. PMID 20527798.  https://dx.doi.org/10.1021%2Fnn100782w
  40. Amy C, Cruickshank; Christian J, Dotzler; Salahud, Din; Sandrine, Heutz; Michael F, Toney; Mary P, Ryan (2012). "The crystalline structure of copper phthalocyanine films on ZnO(1100)". Journal of the American Chemical Society 134 (35): 14302–14305. doi:10.1021/ja305760b. PMID 22897507.  https://dx.doi.org/10.1021%2Fja305760b
  41. Safety data sheet cornelius.co.uk http://www.cornelius.co.uk/Documents/MSDS/Sitrament_Blue_GCN_(Blue_15.3)/$File/01030R-2%20gcn.pdf
  42. Sandor, S; Prelipceanu, O; Checiu, I (1985). "Sulphonated phthalocyanine induced caudal malformative syndrome in the chick embryo.". Morphol Embryol (Bucur) 31 (3): 173–81. PMID 2931590.  http://www.ncbi.nlm.nih.gov/pubmed/2931590
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