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Rupasinghe TP, Hutchins KM, Bandaranayake BS, Ghorai S, Karunatilake C, Bučar DK, Swenson DC, Arnold MA, MacGillivray LR, Tivanski AV. Mechanical Properties of a Series of Macro- and Nanodimensional Organic Cocrystals Correlate with Atomic Polarizability. J Am Chem Soc 2015; 137:12768-71. [DOI: 10.1021/jacs.5b07873] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Abstract
Nearly twenty years ago, Dunitz and Bernstein described a selection of intriguing cases of polymorphs that disappear. The inability to obtain a crystal form that has previously been prepared is indeed a frustrating and potentially serious problem for solid-state scientists. This Review discusses recent occurrences and examples of disappearing polymorphs (as well as the emergence of elusive crystal forms) to demonstrate the enduring relevance of this troublesome, but always captivating, phenomenon in solid-state research. A number of these instances have been central issues in patent litigations. This Review, therefore, also highlights the complex relationship between crystal chemistry and the law.
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Bučar DK, Lancaster RW, Bernstein J. Verschwundene Polymorphe: eine Neubetrachtung. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410356] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Foster RW, Benhamou L, Porter MJ, Bučar DK, Hailes HC, Tame CJ, Sheppard TD. Irreversible endo-selective diels-alder reactions of substituted alkoxyfurans: a general synthesis of endo-cantharimides. Chemistry 2015; 21:6107-14. [PMID: 25756502 PMCID: PMC4406157 DOI: 10.1002/chem.201406286] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Indexed: 11/29/2022]
Abstract
The [4+2] cycloaddition of 3-alkoxyfurans with N-substituted maleimides provides the first general route for preparing endo-cantharimides. Unlike the corresponding reaction with 3H furans, the reaction can tolerate a broad range of 2-substitued furans including alkyl, aromatic, and heteroaromatic groups. The cycloaddition products were converted into a range of cantharimide products with promising lead-like properties for medicinal chemistry programs. Furthermore, the electron-rich furans are shown to react with a variety of alternative dienophiles to generate 7-oxabicyclo[2.2.1]heptane derivatives under mild conditions. DFT calculations have been performed to rationalize the activation effect of the 3-alkoxy group on a furan Diels-Alder reaction.
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Bučar DK, Elliott JA, Eddleston MD, Cockcroft JK, Jones W. Sonocrystallization yields monoclinic paracetamol with significantly improved compaction behavior. Angew Chem Int Ed Engl 2014; 54:249-53. [PMID: 25370777 DOI: 10.1002/anie.201408894] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Indexed: 11/10/2022]
Abstract
Ultrasound-assisted crystallization (sonocrystallization) was used to prepare a mixture of nano- and micrometer-sized crystals of the monoclinic form of paracetamol-a widely used analgesic known for its particularly problematic mechanical behavior under compression (i.e. poor tabletability). The nano- and micrometer-sized crystals yielded a powder which exhibits elastic moduli and bulk cohesions that are significantly higher than those observed in samples consisting of macrometer-sized crystals, thus leading to enhanced tabletability without the use of excipients, particle coating, salt, or cocrystal formation. Experimental compaction and finite element analysis were utilized to rationalize the significantly improved compaction behavior of the monoclinic form of paracetamol.
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31
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Žegarac M, Lekšić E, Šket P, Plavec J, Devčić Bogdanović M, Bučar DK, Dumić M, Meštrović E. A sildenafil cocrystal based on acetylsalicylic acid exhibits an enhanced intrinsic dissolution rate. CrystEngComm 2014. [DOI: 10.1039/c3ce42013b] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Stratford SA, Arhangelskis M, Bučar DK, Jones W. Solid-state photoreactivity of 9-substituted acridizinium bromide salts. CrystEngComm 2014. [DOI: 10.1039/c4ce01622j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of substituted acridizinium bromides was studied to determine how substituents affect the regioselectivity of the solid-state [4 + 4] photodimerisation.
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33
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Elacqua E, Groeneman RH, Reinheimer EW, Bučar DK, MacGillivray LR. Organosulfonates aid argentophilic forces in the crystal engineering of [2+2] photodimerisations: reactivity involving 3-pyridyl groups. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.844815] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Yan D, Bučar DK, Delori A, Patel B, Lloyd GO, Jones W, Duan X. Ultrasound-Assisted Construction of Halogen-Bonded Nanosized Cocrystals That Exhibit Thermosensitive Luminescence. Chemistry 2013; 19:8213-9. [DOI: 10.1002/chem.201203810] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 03/09/2013] [Indexed: 11/11/2022]
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35
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Bottorff SC, Moore AL, Wemple AR, Bučar DK, MacGillivray LR, Benny PD. pH-Controlled Coordination Mode Rearrangements of “Clickable” Huisgen-Based Multidentate Ligands with [MI(CO)3]+ (M = Re, 99mTc). Inorg Chem 2013; 52:2939-50. [DOI: 10.1021/ic302330u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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36
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Ghorai S, Sumrak JC, Hutchins KM, Bučar DK, Tivanski AV, MacGillivray LR. From co-crystals to functional thin films: photolithography using [2+2] photodimerization. Chem Sci 2013. [DOI: 10.1039/c3sc51073e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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37
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Bučar DK, Day GM, Halasz I, Zhang GGZ, Sander JRG, Reid DG, MacGillivray LR, Duer MJ, Jones W. The curious case of (caffeine)·(benzoic acid): how heteronuclear seeding allowed the formation of an elusive cocrystal. Chem Sci 2013. [DOI: 10.1039/c3sc51419f] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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38
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Sander JRG, Bučar DK, Henry RF, Giangiorgi BN, Zhang GGZ, MacGillivray LR. ‘Masked synthons’ in crystal engineering: insulated components in acetaminophen cocrystal hydrates. CrystEngComm 2013. [DOI: 10.1039/c3ce40159f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Stilinović V, Bučar DK, Halasz I, Meštrović E. VO⋯C interactions in crystal structures of oxovanadium-coordination compounds. NEW J CHEM 2013. [DOI: 10.1039/c2nj40780a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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40
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Dutta S, Bučar DK, Elacqua E, MacGillivray LR. Single-crystal-to-single-crystal direct cross-linking and photopolymerisation of a discrete Ag(i) complex to give a 1D polycyclobutane coordination polymer. Chem Commun (Camb) 2013; 49:1064-6. [DOI: 10.1039/c2cc36458a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Bučar DK, Filip S, Arhangelskis M, Lloyd GO, Jones W. Advantages of mechanochemical cocrystallisation in the solid-state chemistry of pigments: colour-tuned fluorescein cocrystals. CrystEngComm 2013. [DOI: 10.1039/c3ce41013g] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Sander JRG, Bučar DK, Baltrusaitis J, MacGillivray LR. Organic nanocrystals of the resorcinarene hexamer via sonochemistry: evidence of reversed crystal growth involving hollow morphologies. J Am Chem Soc 2012; 134:6900-3. [PMID: 22332828 PMCID: PMC3375374 DOI: 10.1021/ja211141p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nano- and micrometer-scale crystals of a self-assembled hexamer have been synthesized via sonochemistry. The application of ultrasonic irradiation afforded hollow rhombic-dodecahedral crystals of the C-methylcalix[4]resorcinarene hexamer. The formation of the hollow crystals is attributed to a reversed crystal growth mechanism heretofore described only in the synthesis of inorganic-based materials.
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43
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Yan D, Delori A, Lloyd GO, Patel B, Friščić T, Day GM, Bučar DK, Jones W, Lu J, Wei M, Evans DG, Duan X. Modification of luminescent properties of a coumarin derivative by formation of multi-component crystals. CrystEngComm 2012. [DOI: 10.1039/c2ce25217a] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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44
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Cliffe MJ, Mottillo C, Stein RS, Bučar DK, Friščić T. Accelerated aging: a low energy, solvent-free alternative to solvothermal and mechanochemical synthesis of metal–organic materials. Chem Sci 2012. [DOI: 10.1039/c2sc20344h] [Citation(s) in RCA: 163] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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45
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Bučar DK, Sen A, Mariappan SVS, MacGillivray LR. A [2+2] cross-photodimerisation of photostable olefins via a three-component cocrystal solid solution. Chem Commun (Camb) 2012; 48:1790-2. [DOI: 10.1039/c2cc15453f] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Chow EHH, Bučar DK, Jones W. New opportunities in crystal engineering – the role of atomic force microscopy in studies of molecular crystals. Chem Commun (Camb) 2012; 48:9210-26. [DOI: 10.1039/c2cc32678g] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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47
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Elacqua E, Kaushik P, Groeneman RH, Sumrak JC, Bučar DK, MacGillivray LR. A Supramolecular Protecting Group Strategy Introduced to the Organic Solid State: Enhanced Reactivity through Molecular Pedal Motion. Angew Chem Int Ed Engl 2011; 51:1037-41. [DOI: 10.1002/anie.201106842] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Indexed: 11/12/2022]
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48
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Ganguly T, Kasten BB, Bučar DK, MacGillivray LR, Berkman CE, Benny PD. The hydrazide/hydrazone click reaction as a biomolecule labeling strategy for M(CO)3 (M = Re, (99m)Tc) radiopharmaceuticals. Chem Commun (Camb) 2011; 47:12846-8. [PMID: 22044929 DOI: 10.1039/c1cc15451f] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile reactivity of hydrazides and aldehydes was explored as potential coupling partners for incorporation into M(CO)(3) (M = Re, (99m)Tc) based radiopharmaceuticals. Both 'click, then chelate' and 'prelabel, then click' synthetic routes produced identical products in high yields and lacked metal-hydrazide/-hydrazone interactions, highlighting the potential of this click strategy.
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49
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Karunatilaka C, Bučar DK, Ditzler LR, Friščić T, Swenson DC, MacGillivray LR, Tivanski AV. Softening and hardening of macro- and nano-sized organic cocrystals in a single-crystal transformation. Angew Chem Int Ed Engl 2011; 50:8642-6. [PMID: 21780261 DOI: 10.1002/anie.201102370] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Indexed: 11/06/2022]
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50
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Karunatilaka C, Bučar DK, Ditzler LR, Friščić T, Swenson DC, MacGillivray LR, Tivanski AV. Softening and Hardening of Macro- and Nano-Sized Organic Cocrystals in a Single-Crystal Transformation. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102370] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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