Biography

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Andrew Cammidge gained a PhD in 1990 investigating some novel phthalocyanine liquid crystals and then spent just over a year at the University of Toledo, USA, working with Alan Morgan on the synthesis of novel organic chromophores for the photodynamic treatment of cancer. In 1991 he returned to the UK to a postdoctoral position at the University of Leeds, spending three years working with Neville Boden and Richard Bushby working on the development of novel syntheses and applications of discotic liquid crystals, before returning to UEA in 1995. He has been a Professor in Chemistry since 2011.

Currently he leads a research team working on synthesis and investigation of complex organic materials, teaches organic chemistry at all levels. He is Deputy Head of School, Director of Finance, Director of Postgraduate Research and Course Director for the School’s MSc in Advanced Organic Chemistry. He sits on the Chemistry Executive and School Research Committee. Outside of UEA, he also sits as elected member of RSC Materials Division council.

Selected Publications

Alharbi, N., Diaz-Moscoso, A., Tizzard, G. J., Coles, S. J., Cook, M. J. & Cammidge, A. N.
Improved syntheses of meso-aryl tetrabenzotriazaporphyrins (TBTAPs)
Tetrahedron. 70, 40, p. 7370-73797, Oct 2014
DOI: 10.1016/j.tet.2014.06.086

Diaz-Moscoso, A., Emond, E., Hughes, D. L., Tizzard, G. J., Coles, S. J. & Cammidge, A. N.
Synthesis of a Class of Core-Modified Aza-BODIPY Derivatives
The Journal of Organic Chemistry. 79, 18, p. 8932-8936, Sep 2014
DOI: 10.1021/jo501863t

Díaz-moscoso, A., Tizzard, G. J., Coles, S. J. & Cammidge, A. N.
Synthesis of meso-Substituted Tetrabenzotriazaporphyrins: Easy Access to Hybrid Macrocycles
Angewandte Chemie International Edition. 52, 41, p. 10784-10787 4 p., Oct 2013
DOI: 10.1002/anie.201306151

Gopee, H., Kong, X., He, Z., Chambrier, I., Hughes, D. L., Tizzard, G. J., Coles, S. J. & Cammidge, A. N.
Expanded Porphyrin-like Structures Based on Twinned Triphenylenes
Journal of Organic Chemistry. 78, 18, p. 9505-9511 7 p., Sep 2013
DOI: 10.1021/jo401551c

Gopee, H., Cammidge, A. N. & Oganesyan, V. S.
Probing Columnar Discotic Liquid Crystals by EPR Spectroscopy with a Rigid-Core Nitroxide Spin Probe
Angewandte Chemie International Edition. 52, 34, p. 8917-8920, Aug 2013
DOI: 10.1002/anie.201303194

 

Career History

  • BSc UEA 1984-1987
  • PhD UEA 1987-1990
  • Postdoctoral fellow University of Toledo 1991-1992
  • Postdoctoral fellow University of Leeds 1992-1995
  • Lecturer UEA 1995-2001
  • Senior Lecturer UEA 2001-2005
  • Reader UEA 2005-2011
  • Professor UEA 2011-

All Publications

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Jiménez Tejada, J. A., Lopez-Varo, P., Chaure, N. B., Chambrier, I., Cammidge, A. N., Cook, M. J., Jafari-Fini, A., Ray, A. K.

(2018)

Organic thin film transistors using a liquid crystalline palladium phthalocyanine as active layer,

in Journal of Applied Physics

123

(11)

article no. 115501

Full Text UEA Repository

(Article)

(Published)


Jiménez Tejada, J. A., Varo, P. L., Cammidge, A. N., Chambrier, I., Cook, M. J., Chaure, N. B., Ray, A. K.

(2017)

Compact modeling of organic thin film transistors with solution processed octadecyl substituted tetrabenzotriazaporphyrin as an active layer,

in IEEE Transactions on Electron Devices

64

(6)

pp. 2629-2634

Full Text UEA Repository

(Article)

(Published)


Pal, C., Sosa-Vargas, L., Ojeda, J. J., Sharma, A. K., Cammidge, A. N., Cook, M. J., Ray, A. K.

(2017)

Charge transport in lead sulfide quantum dots/phthalocyanines hybrid nanocomposites,

in Organic Electronics

44

pp. 132-143

Full Text UEA Repository

(Article)

(Published)


Cammidge, A. N., Turner, R. J., Beskeni, R. D., Almutairi, T.

(2017)

A modified route to unsymmetrically substituted triphenylenes, new functionalised derivatives and twins, and the smallest reported triphenylene mesogen,

in Liquid Crystals

44

(12-13)

pp. 2018-2028

Full Text UEA Repository

(Article)

(Published)


Managa, M., Mack, J., Gonzalez Lucas, D., Remiro Buenamanana, S., Tshangana, C., Cammidge, A., Nyokong, T.

(2016)

Photophysical properties of tetraphenylporphyrinsubphthalocyanine conjugates,

in Journal of Porphyrins and Phthalocyanines

20

(01n04)

Full Text UEA Repository

(Article)

(Published)


Alharbi, N., Tizzard, G. J., Coles, S. J., Cook, M., Cammidge, A.

(2015)

First examples of functionalisation of meso-aryl tetrabenzotriazaporphyrins (TBTAPs) through cross-coupling reactions,

in Tetrahedron

71

(39)

pp. 7227–7232

Full Text UEA Repository

(Article)

(Published)


Garland, A., Chambrier, I., Cammidge, A., Cook, M.

(2015)

Design and synthesis of liquid crystalline phthalocyanines: combinations of substituents that promote the discotic nematic mesophase,

in Tetrahedron

71

(39)

pp. 7310–7314

Full Text UEA Repository

(Article)

(Published)


Khozaee, Z., Sosa Vargas, L., Cammidge, A. N., Cook, M. J., Ray, A. K.

(2015)

Hybrid phthalocyanine/lead sulphide nanocomposite for bistable memory switches,

in Materials Research Express

2

(9)

article no. 096305

Full Text UEA Repository

(Article)

(Published)


Chambrier, I., Banerjee, C., Remiro-Buenamañana, S., Chao, Y., Cammidge, A. N., Bochmann, M.

(2015)

Synthesis of Porphyrin–CdSe Quantum Dot Assemblies: Controlling Ligand Binding by Substituent Effects,

in Inorganic Chemistry

54

(15)

pp. 7368–7380

Full Text UEA Repository

(Article)

(Published)


Remiro Buenamanana, S., Diaz-Moscoso, A., Hughes, D., Bochmann, M., Tizzard, G. J., Coles, S. J., Cammidge, A.

(2015)

Synthesis of Meso-Substituted Subphthalocyanine-Subporphyrin Hybrids: Boron SubTriBenzoDiAzaPorphyrins (SubTBDAPs),

in Angewandte Chemie-International Edition

54

(26)

pp. 7510-7514

Full Text UEA Repository

(Article)

(Published)


Cammidge, A., Obi, G., Turner, R., Coles, S. J., Tizzard, G. J.

(2015)

The synthesis of unsymmetrically substituted triphenylenes through controlled construction of the core and subsequent aromatic substitution reactions – a perspective and update,

in Liquid Crystals

42

(5-6)

pp. 819-825

Full Text UEA Repository

(Article)

(Published)


Chaure, N. B., Cammidge, A. N., Chambrier, I., Cook, M. J., Ray, A.

(2015)

A Tetrabenzotriazaporphyrin Based Organic Thin Film Transistor: Comparison with a Device of the Phthalocyanine Analogue,

in ECS Journal of Solid State Science and Technology

4

(4)

pp. 3086-3090

Full Text UEA Repository

(Article)

(Published)


Xiao, W., He, Z., Remiro Buenamanana, S., Turner, R., Xu, M., Yang, X., Jing, X., Cammidge, A.

(2015)

A π-Extended Donor-Acceptor-Donor Triphenylene Twin linked via a Pyrazine-bridge,

in Organic Letters

17

(13)

pp. 3286–3289

Full Text UEA Repository

(Article)

(Published)


Alharbi, N., Diaz-Moscoso, A., Tizzard, G. J., Coles, S. J., Cook, M. J., Cammidge, A. N.

(2014)

Improved syntheses of meso-aryl tetrabenzotriazaporphyrins (TBTAPs),

in Tetrahedron

70

(40)

pp. 7370-7379

Full Text UEA Repository

(Article)

(Published)


Diaz-Moscoso, A., Emond, E., Hughes, D. L., Tizzard, G. J., Coles, S. J., Cammidge, A. N.

(2014)

Synthesis of a Class of Core-Modified Aza-BODIPY Derivatives,

in The Journal of Organic Chemistry

79

(18)

pp. 8932-8936

Full Text UEA Repository

(Article)

(Published)


Garland, A., Bryant, G., Cambrier, I., Cammidge, A., Cook, M.

(2014)

Liquid crystalline properties of unsymmetrically substituted phthalocyanines: structural features leading to nematic mesophase materials,

in Journal of Porphyrins and Phthalocyanines

18

pp. 944-949

Full Text UEA Repository

(Article)

(Published)


Chaure, N. B., Barard, S., Ray, A. K., Cammidge, A. N., Cook, M. J.

(2013)

Ambipolar charge transport in non-peripherally substituted octahexyl zinc phthalocyanine,

in EPL (Europhysics Letters)

104

(5)

article no. 57005

Full Text UEA Repository

(Article)

(Published)


Díaz-moscoso, A., Tizzard, G. J., Coles, S. J., Cammidge, A. N.

(2013)

Synthesis of meso-Substituted Tetrabenzotriazaporphyrins: Easy Access to Hybrid Macrocycles,

in Angewandte Chemie International Edition

52

(41)

pp. 10784-10787

Full Text UEA Repository

(Article)

(Published)


Gopee, H., Kong, X., He, Z., Chambrier, I., Hughes, D. L., Tizzard, G. J., Coles, S. J., Cammidge, A. N.

(2013)

Expanded Porphyrin-like Structures Based on Twinned Triphenylenes,

in Journal of Organic Chemistry

78

(18)

pp. 9505-9511

Full Text UEA Repository

(Article)

(Published)


Gopee, H., Cammidge, A. N., Oganesyan, V. S.

(2013)

Probing Columnar Discotic Liquid Crystals by EPR Spectroscopy with a Rigid-Core Nitroxide Spin Probe,

in Angewandte Chemie International Edition

52

(34)

pp. 8917-8920

Full Text UEA Repository

(Article)

(Published)


<- Page 1 of 5 ->

Key Research Interests

My group aims to combine purely curiosity-driven research with the tackling of some specific challenges facing modern chemical sciences development. My main research interests and activities concern transition-metal catalysis and molecular (supramolecular) materials. Indeed many projects combine these two themes and use catalysis to access new materials. For example, as part of a project aimed at synthesis of chiral biphenyls for use as liquid crystal dopants, we invented and reported the first intermolecular asymmetric Suzuki-Miyaura cross-coupling reaction. Probing the reaction allowed us to unravel the mechanism and inform design and optimization of cross-coupling catalysis. This work has challenged the accepted key steps of the cross-coupling cycle, and we have described an alternative mechanism that operates when challenging substrates are employed. With this information we were able to transfer efficient catalysis from homogeneous to heterogeneous conditions using, for the first time, the principle of molecular imprinting. Cross-coupling chemistry remains under investigation in the group.

 

The asymmetric Suzuki Reaction      Molecularly Imprinted Pd                                                                                                                                             Catalysts

                          The asymmetric Suzuki Reaction                      Molecularly Imprinted Pd Catalysts


In most of our research, however, the molecules and molecular materials themselves are the main focus. We design and molecules that will assemble themselves into higher order, more complex structures, either spontaneously or under a chemical influence (reaction). The group has much experience in the field of discotic liquid crystalline systems based on triphenylene cores. The early focus of our work in this area was to develop new syntheses of symmetrical and unsymmetrical triphenylenes in order to understand structural features governing the type and stability of the mesophases they form. Most recently our work has investigated flat, conjugated twinned systems with formally antiaromatic character. Stable dehydroannulene structures are produced by twinning the triphenylenes through their 3,6-positions – an arrangement that maintains conjugation but prevents decomposition through pericyclic pathways. The materials prove to be particularly interesting because they show thermotropic nematic liquid crystal phases and in the solid state show pi-overlap in 2-dimensions with each twin bridging two triphenylene columns. The latest work has extended this initial finding by targeting redox-active twins linked through pyrrole and thiophene units to give expanded porphyrinoid structures.



Organic compoundComplex organic compound 

Complex organic compound  Porphyrin


The second major research area revolves around macrocyclic chromophores based on porphyins and phthalocyanines. Phthalocyanines in particular are also known for their discotic liquid crystal behavior and the group has made significant contributions in this area. However, in most of our research the liquid crystal properties of new materials is not the overriding driving force, rather it is the investigation of fundamentally new architectures for application in diverse molecular electronic devices. Within these projects we design ambitious targets – “molecular machines” that resemble well-known macroscopic structures, but whose molecular variant can do work or function in an advanced technology application.



Phthalocyanine


Explanation of the molecular teacup     model


Cartoon depictions of such a machine (based on the fairground “Teacups” ride) are shown in the box. Construction of such machines presents new synthesis challenges, and again we invent new chemistry to achieve the goals. For example, the group has developed, and now reported, straightforward syntheses of phthalocyanine analogues where 1-4 of the meso-nitrogen atoms are replaced by methine fragments to give porphyrin-phthalocyanine hybrids. The parent compounds themselves have been known for some time but the area has been neglected because of the difficulties associated with their synthesis. Our single step procedure to a wide variety of substituted derivatives will open the way for further investigation. Already it is becoming apparent that the hybrid materials offer advantages over their phthalocyanine cousins in terms of their optoelectronic performance. A major breakthrough has delivered the first efficient, controlled synthesis of single hybrid species, opening the way for development of these new classes of organic material. The chemistry developed opens up further potential for new and exciting research and materials design.



Complex chemical reaction

The group’s work benefits from wide and diverse collaborations with both fellow academics and industry.

Research Group Membership

Current research co-workers:

  • Isabelle Fernandes (Senior Research Associate)
  • Xiao Yang (PhD student)
  • Rhoda Beskeni (PhD student)
  • Tahani Almutairi (PhD student)
  • Faeza Alkorbi (PhD student)
  • Fakreah Al-qurashi
  • Abdulaziz Almohyawi
  • Shazia Soobrattee

Teaching Interests

Andrew Cammidge coordinates teaching of all organic chemistry, and lectures at first year (stereochemistry and mechanism), second year (aromaticity, carbonyl-group chemistry) and third year (pericyclic reactions) as well as occasional input to specialist modules (advanced topics, problem solving in organic chemistry).

External Activities and Indicators of Esteem

  • Elected Member RSC Materials Division Council - 8/3/2011

Key Responsibilities

  • Professor of Organic Chemistry
  • Deputy Head of School of Chemistry
  • Director of Finance
  • Director of Postgraduate Research
  • Member Chemistry Executive, Research Committee and Teaching Committees
  • Head of Year 4
  • Course Director for Taught MSc in Advanced Organic Chemistry.

Administrative Posts

Director of Employability