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Identification

Personal identification

Full name
Paula Maria de Jorge Marcos

Citation names

  • Marcos, Paula M.

Author identifiers

Ciência ID
3110-46E4-8C64
ORCID iD
0000-0001-7297-5139

Languages

Language Speaking Reading Writing Listening Peer-review
English Intermediate (B1) Intermediate (B1) Intermediate (B1) Intermediate (B1)
French Intermediate (B1) Intermediate (B1) Intermediate (B1) Intermediate (B1)
Education
Degree Classification
1998
Concluded
 Química (Doutoramento)
Universidade de Lisboa Faculdade de Ciências, Portugal
""Síntese, análise conformacional e aplicações de dihomooxacalix[4]arenos"" (THESIS/DISSERTATION)
 Distinção e Louvor
1986
Concluded
 Licenciatura em Química (Licenciatura)
Universidade de Lisboa Faculdade de Ciências, Portugal
""n/a"" (THESIS/DISSERTATION)
 15
Affiliation

Science

Category
Host institution 		Employer
1998/04/04 - Current Researcher (Research) Universidade de Lisboa Centro de Química Estrutural, Portugal

Teaching in Higher Education

Category
Host institution 		Employer
1998/04/04 - Current Assistant Professor (University Teacher) Universidade de Lisboa Faculdade de Farmácia, Portugal
2016 - 2020 Assistant Professor (University Teacher) Universidade de Lisboa Centro de Química Estrutural, Portugal
2007 - 2013 Assistant Professor (University Teacher) Universidade de Lisboa Faculdade de Farmácia, Portugal
1991/08/01 - 1998/04/03 Assistant (University Teacher) Universidade de Lisboa Faculdade de Farmácia, Portugal
1988/12/02 - 1991/07/31 Trainee Assistant (University Teacher) Universidade de Lisboa Faculdade de Farmácia, Portugal

Others

Category
Host institution 		Employer
2015 - 2015 Universidade de Lisboa Centro de Química Estrutural Universidade de Lisboa Centro de Química Estrutural, Portugal
2007 - 2007 Investigadora Universidade de Lisboa Faculdade de Ciências, Portugal
1987/05/02 - 1988/11/30 Tarefeira Instituto Nacional de Investigação Agrária e Veterinária, Portugal
Projects

Contract

Designation Funders
2009/01/02 - 2012/09/30 Síntese de novos homooxacalixarenos para encapsular aniões
PTDC/QUI/69858/2006
Principal investigator
FCiênciasID Associação para a Investigação e Desenvolvimento de Ciências, Portugal
Concluded
Outputs

Publications

Journal article
  1. Mário N. Berberan-Santos; Paula M. Marcos. "Fluorescent homooxacalixarenes: recent applications in supramolecular systems". Frontiers in Chemistry (2023):
    10.3389/fchem.2023.1258026
  2. Alexandre S. Miranda; Paula M. Marcos; José R. Ascenso; Mário N. Berberan-Santos; Peter J. Cragg; Rachel Schurhammer; Christophe Gourlaouen. "Critical Analysis of Association Constants between Calixarenes and Nitroaromatic Compounds Obtained by Fluorescence. Implications for Explosives Sensing". Molecules (2023): https://doi.org/10.3390/molecules28073052.
    10.3390/molecules28073052
  3. Alexandre S. Miranda; Paula M. Marcos; José R. Ascenso; Mário N. Berberan-Santos; Filipe Menezes. "Anion Binding by Fluorescent Ureido-Hexahomotrioxacalix[3]arene Receptors: An NMR, Absorption and Emission Spectroscopic Study". Molecules (2022): https://doi.org/10.3390/molecules27103247.
    10.3390/molecules27103247
  4. "Calixarene-Based lead receptors: an NMR, DFT and X-Ray synergetic approach". Supramolecular Chemistry (2021): 1-14. http://dx.doi.org/10.1080/10610278.2021.1959035.
    10.1080/10610278.2021.1959035
  5. Alexandre Miranda; Paula Marcos; José Ascenso; M. Robalo; Vasco Bonifácio; Mário Berberan-Santos; Neal Hickey; Silvano Geremia. "Conventional vs. Microwave- or Mechanically-Assisted Synthesis of Dihomooxacalix[4]arene Phthalimides: NMR, X-ray and Photophysical Analysis". Molecules 26 6 (2021): 1503-1503. https://doi.org/10.3390/molecules26061503.
    10.3390/molecules26061503
  6. Alexandre S. Miranda; Paula M. Marcos; José R. Ascenso; Mário N. Berberan-Santos; Rachel Schurhammer; Neal Hickey; Silvano Geremia. "Dihomooxacalix[4]arene-Based Fluorescent Receptors for Anion and Organic Ion Pair Recognition". Molecules 25 20 (2020): 4708-4708. https://doi.org/10.3390/molecules25204708.
    10.3390/molecules25204708
  7. Filipa A. Teixeira; José R. Ascenso; Peter J. Cragg; Neal Hickey; Silvano Geremia; Paula M. Marcos. "Recognition of Anions, Monoamine Neurotransmitter and Trace Amine Hydrochlorides by Ureido-Hexahomotrioxacalix[3]arene Ditopic Receptors". European Journal of Organic Chemistry (2020): https://doi.org/10.1002/ejoc.201901888.
    10.1002/ejoc.201901888
  8. "Ditopic Receptors Based on Dihomooxacalix[4]arenes Bearing Phenylurea Moieties With Electron-Withdrawing Groups for Anions and Organic Ion Pairs". Frontiers in Chemistry 7 (2019): http://dx.doi.org/10.3389/fchem.2019.00758.
    10.3389/fchem.2019.00758
  9. "Extraction and complexation of lanthanide ions by dihomooxacalix[4]arene and calix[4]arene tetraketone derivatives: An experimental and molecular dynamics investigation". Comptes Rendus Chimie 22 9-10 (2019): 639-647. http://dx.doi.org/10.1016/j.crci.2019.09.005.
    10.1016/j.crci.2019.09.005
  10. "A Dihomooxacalix[4]arene-gold nanohybrid based colorimetric sensor for sensitive and selective detection of iodide". Supramolecular Chemistry 31 5 (2019): 313-321. http://dx.doi.org/10.1080/10610278.2019.1575380.
    10.1080/10610278.2019.1575380
  11. Ana S. Augusto; Alexandre S. Miranda; José R. Ascenso; Margarida Q. Miranda; Vítor Félix; Giovanna Brancatelli; Neal Hickey; Silvano Geremia; Paula M. Marcos. "Anion Recognition by Partial Cone Dihomooxacalix[4]arene-Based Receptors Bearing Urea Groups: Remarkable Affinity for Benzoate Ion". European Journal of Organic Chemistry (2018): https://doi.org/10.1002/ejoc.201800880.
    10.1002/ejoc.201800880
  12. "Calixarenes as High Temperature Matrices for Thermally Activated Delayed Fluorescence: C70 in Dihomooxacalix[4]arene". Molecules (2018): http://www.mdpi.com/1420-3049/23/3/558.
    10.3390/molecules23030558
  13. Filipa A. Teixeira; Paula M. Marcos; José R. Ascenso; Giovanna Brancatelli; Neal Hickey; Silvano Geremia. "Selective Binding of Spherical and Linear Anions by Tetraphenyl(thio)urea-Based Dihomooxacalix[4]arene Receptors". The Journal of Organic Chemistry 82 21 (2017): 11383-11390. https://doi.org/10.1021/acs.joc.7b01801.
    10.1021/acs.joc.7b01801
  14. Miranda, A.S.; Martelo, L.M.; Fedorov, A.A.; Berberan-Santos, M.N.; Marcos, P.M.. "Fluorescence properties of: P-tert -butyldihomooxacalix[4]arene derivatives and the effect of anion complexation". New Journal of Chemistry 41 13 (2017): 5967-5973. http://www.scopus.com/inward/record.url?eid=2-s2.0-85021748895&partnerID=MN8TOARS.
    10.1039/c7nj00652g
  15. Marcos, P.M.; Fonseca, J.D.; Proença, C.S.; Ascenso, J.R.; Bernardino, R.J.; Kulesza, J.; Bochenska, M.. "Experimental and computational studies of the binding properties of lower rim tetra- and di-substituted calix[4]arene amide derivatives with metal ions". Supramolecular Chemistry 28 5-6 (2016): 367-376. http://www.scopus.com/inward/record.url?eid=2-s2.0-84958054049&partnerID=MN8TOARS.
    10.1080/10610278.2015.1093631
  16. Martínez-González, E.; González, F.J.; Ascenso, J.R.; Marcos, P.M.; Frontana, C.. "Competition between Hydrogen Bonding and Proton Transfer during Specific Anion Recognition by Dihomooxacalix[4]arene Bidentate Ureas". Journal of Organic Chemistry 81 15 (2016): 6329-6335. http://www.scopus.com/inward/record.url?eid=2-s2.0-84981194457&partnerID=MN8TOARS.
    10.1021/acs.joc.6b00962
  17. Talotta, C.; Gaeta, C.; De Rosa, M.; Ascenso, J.R.; Marcos, P.M.; Neri, P.. "Alkylammonium Guest Induced-Fit Recognition by a Flexible Dihomooxacalix[4]arene Derivative". European Journal of Organic Chemistry 2016 1 (2016): 158-167. http://www.scopus.com/inward/record.url?eid=2-s2.0-84954549919&partnerID=MN8TOARS.
    10.1002/ejoc.201501319
  18. Griffiths, K.; Sharma, K.; Marcos, P.M.; Ascenso, J.R.; Nind, J.; Cottet, K.; Cragg, P.J.. "Cation binding, transport and theoretical calculations of cone-p-tert-butylhexahomotrioxacalix[3]arene tris(acetic acid)". Supramolecular Chemistry 27 3 (2015): 167-173. http://www.scopus.com/inward/record.url?eid=2-s2.0-84921322266&partnerID=MN8TOARS.
    10.1080/10610278.2014.918269
  19. Gattuso, G.; Notti, A.; Parisi, M.F.; Pisagatti, I.; Marcos, P.M.; Ascenso, J.R.; Brancatelli, G.; Geremia, S.. "Selective recognition of biogenic amine hydrochlorides by heteroditopic dihomooxacalix[4]arenes". New Journal of Chemistry 39 2 (2015): 817-821. http://www.scopus.com/inward/record.url?eid=2-s2.0-84922569255&partnerID=MN8TOARS.
    10.1039/c4nj01423e
  20. Martínez-González, E.; Armendáriz-Vidales, G.; Ascenso, J.R.; Marcos, P.M.; Frontana, C.. "Site-specific description of the enhanced recognition between electrogenerated nitrobenzene anions and dihomooxacalix[4]arene bidentate ureas". Journal of Organic Chemistry 80 9 (2015): 4581-4589. http://www.scopus.com/inward/record.url?eid=2-s2.0-84928911571&partnerID=MN8TOARS.
    10.1021/acs.joc.5b00441
  21. Lavendomme, R.; Cragg, P.J.; Marcos, P.M.; Luhmer, M.; Jabin, I.. "Synthesis of (Homooxa)calixarene-Monoquinones through the "all-but-One" Methodology". Organic Letters 17 22 (2015): 5690-5693. http://www.scopus.com/inward/record.url?eid=2-s2.0-84947941379&partnerID=MN8TOARS.
    10.1021/acs.orglett.5b02985
  22. Marcos, P.M.; Teixeira, F.A.; Segurado, M.A.P.; Ascenso, J.R.; Bernardino, R.J.; Brancatelli, G.; Geremia, S.. "Synthesis and anion binding properties of new dihomooxacalix[4]arene diurea and dithiourea receptors". Tetrahedron 70 37 (2014): 6497-6505. http://www.scopus.com/inward/record.url?eid=2-s2.0-84949115179&partnerID=MN8TOARS.
    10.1016/j.tet.2014.07.020
  23. Marcos, P.M.; Teixeira, F.A.; Segurado, M.A.P.; Ascenso, J.R.; Bernardino, R.J.; Michel, S.; Hubscher-Bruder, V.. "Bidentate urea derivatives of p-tert-butyldihomooxacalix[4]arene: Neutral receptors for anion complexation". Journal of Organic Chemistry 79 2 (2014): 742-751. http://www.scopus.com/inward/record.url?eid=2-s2.0-84896801891&partnerID=MN8TOARS.
    10.1021/jo4026012
  24. Marcos, P.M.; Teixeira, F.A.; Segurado, M.A.P.; Ascenso, J.R.; Bernardino, R.J.; Cragg, P.J.; Michel, S.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Complexation and DFT studies of lower rim hexahomotrioxacalix[3]arene derivatives bearing pyridyl groups with transition and heavy metal cations. Cone versus partial cone conformation". Journal of Physical Organic Chemistry 26 4 (2013): 295-305. http://www.scopus.com/inward/record.url?eid=2-s2.0-84875491317&partnerID=MN8TOARS.
    10.1002/poc.3085
  25. Marcos, P.M.; Proença, C.S.; Teixeira, F.A.; Ascenso, J.R.; Bernardino, R.J.; Cragg, P.J.. "Synthesis, NMR and DFT conformational studies of homooxacalixarene (cyanopropyl)oxy derivatives, precursors to urea-terminated compounds". Tetrahedron 69 35 (2013): 7430-7437. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880734817&partnerID=MN8TOARS.
    10.1016/j.tet.2013.06.048
  26. Marcos, P.M.; Teixeira, F.A.; Segurado, M.A.P.; Ascenso, J.R.; Bernardino, R.J.; Cragg, P.J.; Michel, S.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Complexation and DFT studies of lanthanide ions by (2-pyridylmethoxy) homooxacalixarene derivatives". Supramolecular Chemistry 25 8 (2013): 522-532. http://www.scopus.com/inward/record.url?eid=2-s2.0-84882454409&partnerID=MN8TOARS.
    10.1080/10610278.2013.801556
  27. Gaeta, C.; Talotta, C.; Farina, F.; Teixeira, F.A.; Marcos, P.M.; Ascenso, J.R.; Neri, P.. "Alkylammonium cation complexation into the narrow cavity of dihomooxacalix[4]arene macrocycle". Journal of Organic Chemistry 77 22 (2012): 10285-10293. http://www.scopus.com/inward/record.url?eid=2-s2.0-84869179671&partnerID=MN8TOARS.
    10.1021/jo3019945
  28. Cottet, K.; Marcos, P.M.; Cragg, P.J.. "Fifty years of oxacalix[3]arenes: A review". Beilstein Journal of Organic Chemistry 8 (2012): 201-226. http://www.scopus.com/inward/record.url?eid=2-s2.0-84856916446&partnerID=MN8TOARS.
    10.3762/bjoc.8.22
  29. Marcos, P.M.; Ascenso, J.R.; Segurado, M.A.P.; Cragg, P.J.; Michel, S.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Lanthanide cation binding properties of homooxacalixarene diethylamide derivatives". Supramolecular Chemistry 23 1-2 (2011): 93-101. http://www.scopus.com/inward/record.url?eid=2-s2.0-79952235201&partnerID=MN8TOARS.
    10.1080/10610278.2010.510562
  30. Bochenska, M.; Cragg, P.J.; Guzinski, M.; Jasinski, A.; Kulesza, J.; Marcos, P.M.; Pomecko, R.. "Ion-selective electrodes based on p-tert-butyl-homooxacalixarene di(ethyl)amides". Supramolecular Chemistry 21 8 (2009): 732-737. http://www.scopus.com/inward/record.url?eid=2-s2.0-77649105223&partnerID=MN8TOARS.
    10.1080/10610270902853043
  31. Marcos, P.M.; Ascenso, J.R.; Segurado, M.A.P.; Bernardino, R.J.; Cragg, P.J.. "Synthesis, binding properties and theoretical studies of p-tert-butylhexahomotrioxacalix[3]arene tri(adamantyl)ketone with alkali, alkaline earth, transition, heavy metal and lanthanide cations". Tetrahedron 65 2 (2009): 496-503. http://www.scopus.com/inward/record.url?eid=2-s2.0-57049137077&partnerID=MN8TOARS.
    10.1016/j.tet.2008.11.005
  32. Marcos, P.M.; Ascenso, J.R.. "Synthesis, structural characterisation and metal ion-binding properties of a new p-tert-butyldihomooxacalix[4]crown-6". Supramolecular Chemistry 21 1-2 (2009): 61-67. http://www.scopus.com/inward/record.url?eid=2-s2.0-65249138889&partnerID=MN8TOARS.
    10.1080/10610270802516609
  33. Marcos, P.M.; Ascenso, J.R.; Cragg, P.J.. "Binding properties and molecular mechanics calculations of p-tert-butylhexahomotrioxacalix[3]arene Tri(diethyl)amide with alkali, alkaline earth, transition and heavy metal cations". Supramolecular Chemistry 19 3 (2007): 199-206. http://www.scopus.com/inward/record.url?eid=2-s2.0-34347249934&partnerID=MN8TOARS.
    10.1080/10610270601026594
  34. Neng, N.R.; Pinto, M.L.; Pires, J.; Marcos, P.M.; Nogueira, J.M.F.. "Development, optimisation and application of polyurethane foams as new polymeric phases for stir bar sorptive extraction". Journal of Chromatography A 1171 1-2 (2007): 8-14. http://www.scopus.com/inward/record.url?eid=2-s2.0-35348913766&partnerID=MN8TOARS.
    10.1016/j.chroma.2007.09.033
  35. Marcos, P.M.; Félix, S.; Ascenso, J.R.; Segurado, M.A.P.; Thuéry, P.; Mellah, B.; Michel, S.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Complexation and transport of transition and heavy metal cations by p-tert-butyldihomooxacalix[4]arene tetraketones and X-ray crystal structure of the tert-butyl ketone derivative". New Journal of Chemistry 31 12 (2007): 2111-2119. http://www.scopus.com/inward/record.url?eid=2-s2.0-36448969750&partnerID=MN8TOARS.
    10.1039/b705879a
  36. Marcos, P.M.; Ascenso, J.R.. "Synthesis, NMR characterization and ion binding properties of 1,3-bridged p-tert-butyldihomooxacalix[4]crown-6 bearing pyridyl pendant groups". Tetrahedron 62 13 (2006): 3081-3088. http://www.scopus.com/inward/record.url?eid=2-s2.0-33644664437&partnerID=MN8TOARS.
    10.1016/j.tet.2006.01.033
  37. Marcos, P.M.; Félix, S.; Ascenso, J.R.; Segurado, M.A.P.; Mellah, B.; Abidi, R.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Erratum: Complexation and transport of alkali and alkaline earth metal cations by p-tert -butyldihomooxacalix[4]arene tetraketone derivatives (Supramolecular Chemistry 8, 2)". Supramolecular Chemistry 18 4 (2006): 285-297. http://www.scopus.com/inward/record.url?eid=2-s2.0-33746812257&partnerID=MN8TOARS.
    10.1080/10610270600773006
  38. Marcos, P.M.; Mellah, B.; Ascenso, J.R.; Michel, S.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Binding properties of p-tert-butyldihomooxacalix[4]arene tetra(2-pyridylmethoxy) derivative towards alkali, alkaline earth, transition and heavy metal cations". New Journal of Chemistry 30 11 (2006): 1655-1661. http://www.scopus.com/inward/record.url?eid=2-s2.0-33750835663&partnerID=MN8TOARS.
    10.1039/b608003k
  39. Marcos, P.M.; Félix, S.; Ascenso, J.R.; Segurado, M.A.P.; Mellah, B.; Abidi, R.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Complexation and transport of alkali and alkaline earth metal cations by p-tert-butyldihomooxacalix[4]arene tetraketone derivatives". Supramolecular Chemistry 18 2 (2006): 147-159. http://www.scopus.com/inward/record.url?eid=2-s2.0-33746800738&partnerID=MN8TOARS.
    10.1080/10610270500516257
  40. Marcos, P.M.; Félix, S.; Ascenso, J.R.; Segurado, M.A.P.; Pereira, J.L.C.; Khazaeli-Parsa, P.; Hubscher-Bruder, V.; Arnaud-Neu, F.. "Complexation and transport of alkali, alkaline earth, transition and heavy metal cations by p-tert-butyldihomooxacalix[4]arene tetra(diethyl)amide". New Journal of Chemistry 28 6 (2004): 748-755. http://www.scopus.com/inward/record.url?eid=2-s2.0-3042821032&partnerID=MN8TOARS.
    10.1039/b401423p
  41. Marcos, P.M.; Félix, S.; Ascenso, J.R.; Amélia Santos, M.; Segurado, M.A.P.; Pereira, J.L.C.. "Synthesis, conformational behaviour, alkali and alkaline-earth metal cation extraction and transport studies of p-tert-butyldihomooxacalix[4]crowns". Tetrahedron 58 45 (2002): 9223-9230. http://www.scopus.com/inward/record.url?eid=2-s2.0-0037020811&partnerID=MN8TOARS.
    10.1016/S0040-4020(02)01181-X
  42. Marcos, P.M.; Ascenso, J.R.; Pereira, J.L.C.. "Synthesis and NMR conformational studies of p-tert-butyldihomooxacalix[4]arene derivatives bearing pyridyl pendant groups at the lower rim". European Journal of Organic Chemistry 17 (2002): 3034-3041. http://www.scopus.com/inward/record.url?eid=2-s2.0-0036712046&partnerID=MN8TOARS.
  43. Marcos, P.M.; Ascenso, J.R.; Segurado, M.A.P.; Pereira, J.L.C.. "p-tert-butyldihomooxacalix[4]arene/p-tert-butylcalix[4]arene: Transition and heavy metal cation extraction and transport studies by ketone and ester derivatives". Journal of Inclusion Phenomena 42 3-4 (2002): 281-288. http://www.scopus.com/inward/record.url?eid=2-s2.0-0005333449&partnerID=MN8TOARS.
    10.1023/A:1016083624362
  44. Marcos, P.M.; Ascenso, J.R.; Segurado, M.A.P.; Pereira, J.L.C.. "Synthesis, NMR conformational analysis, complexation and transport studies of an inherently chiral dihomooxacalix[4]arene triester". Tetrahedron 57 32 (2001): 6977-6984. http://www.scopus.com/inward/record.url?eid=2-s2.0-0035817155&partnerID=MN8TOARS.
    10.1016/S0040-4020(01)00652-4
  45. Santos, M.A.; Marcos, P.M.; Cardoso Pereira, J.L.. "Conformational analysis of a tetrabenzylated dihomooxacalix[4]arene. A theoretical study". Journal of Molecular Structure: THEOCHEM 463 1-2 (1999): 21-26. http://www.scopus.com/inward/record.url?eid=2-s2.0-0033597052&partnerID=MN8TOARS.
    10.1016/S0166-1280(98)00388-1
  46. Marcos, P.M.; Ascenso, J.R.; Segurado, M.A.P.; Pereira, J.L.C.. "Alkali and alkaline-earth metal cation complexation and transport properties by tetraphenyl ketone of p-tert-butyldihomooxacalix[4]arene". Journal of Physical Organic Chemistry 12 9 (1999): 695-702. http://www.scopus.com/inward/record.url?eid=2-s2.0-0001156095&partnerID=MN8TOARS.
  47. Perrin, M.; Lecocq, S.; Marcos, P.M.; Pereira, J.L.C.. "Substituent effects in dihomooxacalix [4] arenes: conformations and crystal structures of dihomooxacalix [4] arenes tetrasubstituted at the OH groups". Supramolecular Chemistry 9 2 (1998): 137-141. http://www.scopus.com/inward/record.url?eid=2-s2.0-11644309811&partnerID=MN8TOARS.
    10.1080/10610279808034978
  48. Marcos, P.M.; Ascenso, J.R.; Lamartine, R.; Pereira, J.L.C.. "Synthesis and Conformational Characteristics of Inherently Chiral Monoalkyl Ethers of p-tert-Butyldihomooxacalix[4]arene". Journal of Organic Chemistry 63 1 (1998): 69-74. http://www.scopus.com/inward/record.url?eid=2-s2.0-0001939291&partnerID=MN8TOARS.
  49. Marcos, P.M.; Ascenso, J.R.; Lamartine, R.; Pereira, J.L.C.. "NMR conformational studies of tetraalkylated dihomooxacalix[4]arenes". Tetrahedron 53 34 (1997): 11791-11802. http://www.scopus.com/inward/record.url?eid=2-s2.0-0030802405&partnerID=MN8TOARS.
    10.1016/S0040-4020(97)00753-9
  50. Marcos, P.M.; Ascenso, J.R.; Lamartine, R.; Pereira, J.L.C.. "Synthesis and NMR conformational studies of p-tert-butyldihomooxacalix[4]-arene derivatives". Supramolecular Chemistry 6 3-4 (1996): 303-306. http://www.scopus.com/inward/record.url?eid=2-s2.0-0013565849&partnerID=MN8TOARS.