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Blake AJ, Castellano C, Lippolis V, Podda E, Schröder M. Formation of extended polyiodides at large cation templates. Acta Crystallogr C Struct Chem 2024; 80:311-318. [PMID: 38934272 PMCID: PMC11225612 DOI: 10.1107/s2053229624004194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/07/2024] [Indexed: 06/28/2024] Open
Abstract
By studying the structures of (μ-1,4,10,13-tetrathia-7,16-diazacyclooctadecane)bis[iodidopalladium(II)] diiodide penta(diiodine), [Pd2I2(C12H26N2S4)](I)2·5I2 or [Pd2I2([18]aneN2S4)](I)2·(I2)5, and 4,7,13,16,21,24-hexaoxa-1,10-diazoniabicyclo[8.8.8]hexacosane triiodide iodide hemipenta(diiodine) dichloromethane monosolvate, C18H38N2O62+·I3-·I-·2.5I2·CH2Cl2 or [H2([2.2.2]cryptand)](I3)(I)(I2)2.5·CH2Cl2, we confirm the structural variety of extended polyiodides achievable upon changing the shape, charge and dimensions of the cation template, by altering the synthetic strategy adopted and/or the experimental conditions. Although it is still often difficult to characterize discrete [I2m+n]n- polyiodides higher than I3- on the basis of structural parameters, such as I-I bond distances, FT-Raman spectroscopy appears to identify them as aggregates of I2, I- and (symmetric or slightly asymmetric) I3- building blocks linked by I...I interactions of varying strengths. However, because FT-Raman spectroscopy carries no information about the topological features of extended polyiodides, the two techniques should therefore be applied in combination to enhance the analysis of this kind of compounds.
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Affiliation(s)
- Alexander J. Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Carlo Castellano
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA), 09042, Italy
| | - Enrico Podda
- Centre for Research University Services (CeSAR), Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, Monserrato (CA), 09042, Italy
| | - Martin Schröder
- Department of Chemistry The University of ManchesterManchester M139PL United Kingdom
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Savastano M, Bazzicalupi C, Bianchi A. Novel cyclen-polyiodide complexes: a reappraisal of I-I covalent and secondary bond limits. Dalton Trans 2022; 51:10728-10739. [PMID: 35293413 DOI: 10.1039/d2dt00185c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular stabilization of polyiodides and iodine-dense phases is of high interest: this study explores the possibilities offered in this sense by diprotonated cyclen, affording two novel crystal structures. One of them contains at least one peculiar I⋯I interatomic distance (3.305(1) Å), falling well below the region commonly described by secondary bonding (3.4-3.7 Å) and essentially equal to the accepted limit for covalent bonding (3.30 Å): in other words, according to threshold distance values, we are relatively free to regard this interaction either as a bond or as contact. Lest the flip of a coin decides if we should or should not draw a bond in a polyiodide, statistical insights based on CSD surveys were used to put in perspective literature material and work out a meaningful assignment (as I82-). In doing so, we address how currently accepted threshold distance values came to be in the first place, their significance, soundness, and shortcomings in describing I82- and its formal fragments (I2, I3-, I5-). Discussion of the chemical meaning of the line representing bonding in I-I fragments in similar fringe cases, relating CSD data herein presented with the previous literature, is provided. Available information coincides quite well in supporting the necessity of a revision of broadly accepted threshold distance values.
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Affiliation(s)
- Matteo Savastano
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
| | - Carla Bazzicalupi
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
| | - Antonio Bianchi
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
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Ciancaleoni G, Nunzi F, Belpassi L. Charge Displacement Analysis-A Tool to Theoretically Characterize the Charge Transfer Contribution of Halogen Bonds. Molecules 2020; 25:molecules25020300. [PMID: 31940866 PMCID: PMC7024339 DOI: 10.3390/molecules25020300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 11/17/2022] Open
Abstract
Theoretical bonding analysis is of prime importance for the deep understanding of the various chemical interactions, covalent or not. Among the various methods that have been developed in the last decades, the analysis of the Charge Displacement function (CD) demonstrated to be useful to reveal the charge transfer effects in many contexts, from weak hydrogen bonds, to the characterization of σ hole interactions, as halogen, chalcogen and pnictogen bonding or even in the decomposition of the metal-ligand bond. Quite often, the CD analysis has also been coupled with experimental techniques, in order to give a complete description of the system under study. In this review, we focus on the use of CD analysis on halogen bonded systems, describing the most relevant literature examples about gas phase and condensed phase systems. Chemical insights will be drawn about the nature of halogen bond, its cooperativity and its influence on metal-ligand bond components.
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Affiliation(s)
- Gianluca Ciancaleoni
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-221-9351
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, I-06123 Perugia, Italy;
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” del CNR (SCITEC-CNR), via Elce di Sotto 8, I-06123 Perugia, Italy;
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” del CNR (SCITEC-CNR), via Elce di Sotto 8, I-06123 Perugia, Italy;
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Marrazzini G, Gabbiani C, Ciancaleoni G. Interplay between Gold(I)-Ligand Bond Components and Hydrogen Bonding: A Combined Experimental/Computational Study. ACS OMEGA 2019; 4:1344-1353. [PMID: 31459403 PMCID: PMC6647975 DOI: 10.1021/acsomega.8b03330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 01/03/2019] [Indexed: 06/10/2023]
Abstract
The influence of weak interactions on the donation/back-donation bond components in the complex [(NHC)Au(SeU)]+ (NHC = N-heterocyclic carbene; SeU = selenourea) has been studied by coupling experimental and theoretical techniques. In particular, NMR 1H and pulsed-field gradient spin-echo titrations allowed us to characterize the hydrogen bond (HB) between the -NH2 moieties of SeU and the anions PF6 - and ClO4 -, whereas 77Se NMR spectroscopy allowed us to characterize the Au-Se bond. Theoretically, the Au-Se and Au-C orbital interactions have been decomposed using the natural orbital for the chemical valence framework and the bond components quantified through the charge displacement analysis. This methodology provides the quantification of the Dewar-Chatt-Duncanson (DCD) components for the Au-C and Au-Se bonds in the absence and presence of the second-sphere HB. The results presented here show that the anion has a dual mode action: it modifies the conformation of the cation by ion pairing (and this already influences the DCD components) and it induces new polarization effects that depend on the relative anion/cation relative orientation. The perchlorate polarizes SeU, enhancing the Se → Au σ donation and the Au → C back-donation and depressing the C → Au σ donation. On the contrary, the hexafluorophosphate depresses both the Se → Au and C → Au σ donations.
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Østrøm I, Ortolan AO, Schneider FSS, Caramori GF, Parreira RLT. Quest for Insight into Ultrashort C–H···π Proximities in Molecular “Iron Maidens”. J Org Chem 2018; 83:5114-5122. [DOI: 10.1021/acs.joc.8b00461] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ina Østrøm
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Alexandre O. Ortolan
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Felipe S. S. Schneider
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Giovanni F. Caramori
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Renato L. T. Parreira
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, 14404-600 Franca, São Paulo, Brazil
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Schneider FSS, Caramori GF, Parreira RLT, Lippolis V, Arca M, Ciancaleoni G. Bond Analysis in Dihalogen-Halide and Dihalogen-Dimethylchalcogenide Systems. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701337] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Felipe S. S. Schneider
- Departamento de Química; Universidade Federal de Santa Catarina; Campus Universitário Trindade 88040-900 Florianópolis, SC Brazil
| | - Giovanni Finoto Caramori
- Departamento de Química; Universidade Federal de Santa Catarina; Campus Universitário Trindade 88040-900 Florianópolis, SC Brazil
| | - Renato L. T. Parreira
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas; Universidade de Franca; Franca SP Brazil
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche; Università degli Studi di Cagliari, S. S.; 554 Bivio per Sestu 09042 Monserrato (CA) Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche; Università degli Studi di Cagliari, S. S.; 554 Bivio per Sestu 09042 Monserrato (CA) Italy
| | - Gianluca Ciancaleoni
- Departamento de Química; Universidade Federal de Santa Catarina; Campus Universitário Trindade 88040-900 Florianópolis, SC Brazil
- Dipartimento di Chimica e Chimica Industriale; Università degli Studi di Pisa; via Giuseppe Moruzzi 13 56124 Pisa Italy
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Montis R, Arca M, Aragoni MC, Blake AJ, Castellano C, Demartin F, Isaia F, Lippolis V, Pintus A, Lenardão EJ, Perin G, O'Connor AE, Thurow S. Structural diversity in the products formed by the reactions of 2-arylselanyl pyridine derivatives and dihalogens. NEW J CHEM 2018. [DOI: 10.1039/c8nj00495a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presence of competing donor sites in L1–L4 influences their reactivity towards dihalogens and interhalogens.
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Sun Z, Moore KB, Hill JG, Peterson KA, Schaefer HF, Hoffmann R. Alkali-Metal Trihalides: M+X3– Ion Pair or MX–X2 Complex? J Phys Chem B 2017; 122:3339-3353. [DOI: 10.1021/acs.jpcb.7b10005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi Sun
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Kevin B. Moore
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - J. Grant Hill
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Roald Hoffmann
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, United States
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Montis R, Arca M, Aragoni MC, Bauzá A, Demartin F, Frontera A, Isaia F, Lippolis V. Hydrogen- and halogen-bond cooperativity in determining the crystal packing of dihalogen charge-transfer adducts: a study case from heterocyclic pentatomic chalcogenone donors. CrystEngComm 2017. [DOI: 10.1039/c7ce01035d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synergic cooperation between HB and XB interactions determines the supramolecular architectures in dihalogen CT adducts of hydantoin-like chalcogen donors.
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Affiliation(s)
- Riccardo Montis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - M. Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Antonio Bauzá
- Departament de Quimica
- Universitat de les Illes Balears
- Palma de Mallorca (Baleares)
- Spain
| | - Francesco Demartin
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Antonio Frontera
- Departament de Quimica
- Universitat de les Illes Balears
- Palma de Mallorca (Baleares)
- Spain
| | - Francesco Isaia
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato (CA)
- Italy
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10
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Ciancaleoni G, Macchioni A, Rocchigiani L, Zuccaccia C. A PGSE NMR approach to the characterization of single and multi-site halogen-bonded adducts in solution. RSC Adv 2016. [DOI: 10.1039/c6ra17455h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The diffusional PGSE NMR technique allows a detailed characterization of single- and multi-site halogen-bonded systems.
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Affiliation(s)
- Gianluca Ciancaleoni
- Departamento de Química
- Universidade Federal de Santa Catarina
- 88040-900 Florianópolis
- Brazil
| | - Alceo Macchioni
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universitá degli Studi di Perugia
- Perugia
- Italy
| | - Luca Rocchigiani
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universitá degli Studi di Perugia
- Perugia
- Italy
| | - Cristiano Zuccaccia
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universitá degli Studi di Perugia
- Perugia
- Italy
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