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Mohan S, Rissanen K, Ward JS. Iodine(I) pnictogenate complexes as Iodination reagents. Commun Chem 2024; 7:159. [PMID: 39020074 PMCID: PMC11255316 DOI: 10.1038/s42004-024-01240-0] [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: 06/17/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024] Open
Abstract
Halogen(I) complexes are widely used as halogenation reagents and traditionally feature homoleptic stabilising Lewis bases, though the recent revitalisation of iodine(I) carboxylate chemistry has provided isolable examples of heteroleptic iodine(I) complexes. This work reports iodine(I) pnictogenate complexes stabilised by a Lewis base (L), Ph2P(O)O─I─L, synthesised via cation exchange from the silver(I) precursor, (Ph2P(O)OAg)n. The complexes were characterised in both solution (1H, 1H-15N HMBC, 31P) and the solid state, and supplemented computationally by DFT studies. Interestingly, these iodine(I) pnictogenates demonstrate a range of stabilities, and have been found to excel as iodination reagents in comparison to carbonyl hypoiodites, with comparable reactivity to the eponymous Barluenga's reagent in the iodination of antipyrine.
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Affiliation(s)
- Sharath Mohan
- Department of Chemistry, University of Jyvaskyla, 40014, Jyväskylä, Finland
| | - Kari Rissanen
- Department of Chemistry, University of Jyvaskyla, 40014, Jyväskylä, Finland
| | - Jas S Ward
- Department of Chemistry, University of Jyvaskyla, 40014, Jyväskylä, Finland.
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2
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Wieske LE, Erdelyi M. Halogen Bonds of Halogen(I) Ions─Where Are We and Where to Go? J Am Chem Soc 2024; 146:3-18. [PMID: 38117016 PMCID: PMC10785816 DOI: 10.1021/jacs.3c11449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 12/21/2023]
Abstract
Halenium ions, X+, are particularly strong halogen-bond donors that interact with two Lewis bases simultaneously to form linear [D···X···D]+-type halonium complexes. Their three-center, four-electron halogen bond is both fundamentally interesting and technologically valuable as it tames the reactivity of halogen(I) ions, opening up new horizons in a variety of fields including synthetic organic and supramolecular chemistry. Understanding this bonding situation enables the development of improved halogen(I) transfer reactions and of advanced functional materials. Following a decade of investigations of basic principles, the range of applications is now rapidly widening. In this Perspective, we assess the status of the field and identify its key advances and the main bottlenecks. Clearing common misunderstandings that may hinder future progress, we aim to inspire and direct future research efforts.
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Affiliation(s)
- Lianne
H. E. Wieske
- Department of Chemistry−BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
| | - Mate Erdelyi
- Department of Chemistry−BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
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3
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Kumar P, Rautiainen JM, Novotný J, Ward JS, Marek R, Rissanen K, Puttreddy R. The Impact of ortho-substituents on Bonding in Silver(I) and Halogen(I) Complexes of 2-Mono- and 2,6-Disubstituted Pyridines: An In-Depth Experimental and Theoretical Study. Chemistry 2023:e202303643. [PMID: 38055221 DOI: 10.1002/chem.202303643] [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: 11/02/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
The coordination nature of 2-mono- and 2,6-disubstituted pyridines with electron-withdrawing halogen and electron-donating methyl groups for [N-X-N]+ (X=I, Br) complexations have been studied using 15 N NMR, X-ray crystallography, and Density Functional Theory (DFT) calculations. The 15 N NMR chemical shifts reveal iodine(I) and bromine(I) prefer to form complexes with 2-substituted pyridines and only 2,6-dimethylpyridine. The crystalline halogen(I) complexes of 2-substituted pyridines were characterized by using X-ray diffraction analysis, but 2,6-dihalopyridines were unable to form stable crystalline halogen(I) complexes due to the lower nucleophilicity of the pyridinic nitrogen. In contrast, the halogen(I) complexes of 2,6-dimethylpyridine, which has a more basic nitrogen, are characterized by X-crystallography, which complements the 15 N NMR studies. DFT calculations reveal that the bond energies for iodine(I) complexes vary between -291 and -351 kJ mol-1 and for bromine between -370 and -427 kJ mol-1 . The bond energies of halogen(I) complexes of 2-halopyridines with more nucleophilic nitrogen are 66-76 kJ mol-1 larger than those of analogous 2,6-dihalopyridines with less nucleophilic nitrogen. The experimental and DFT results show that the electronic influence of ortho-halogen substituents on pyridinic nitrogen leads to a completely different preference for the coordination bonding of halogen(I) ions, providing new insights into bonding in halogen(I) chemistry.
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Affiliation(s)
- Parveen Kumar
- Department of chemistry, University of Jyvaskyla, Jyvaskyla, P.O. BOX 35, FI-40014, Finland
| | - J Mikko Rautiainen
- Department of chemistry, University of Jyvaskyla, Jyvaskyla, P.O. BOX 35, FI-40014, Finland
| | - Jan Novotný
- Department of Chemistry, Faculty of Science, Masaryk university, Kamenice 5, 62500, Brno, Czechia
| | - Jas S Ward
- Department of chemistry, University of Jyvaskyla, Jyvaskyla, P.O. BOX 35, FI-40014, Finland
| | - Radek Marek
- Department of Chemistry, Faculty of Science, Masaryk university, Kamenice 5, 62500, Brno, Czechia
| | - Kari Rissanen
- Department of chemistry, University of Jyvaskyla, Jyvaskyla, P.O. BOX 35, FI-40014, Finland
| | - Rakesh Puttreddy
- Department of chemistry, University of Jyvaskyla, Jyvaskyla, P.O. BOX 35, FI-40014, Finland
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4
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Puttreddy R, Rautiainen JM, Yu S, Rissanen K. N-X⋅⋅⋅O-N Halogen Bonds in Complexes of N-Haloimides and Pyridine-N-oxides: A Large Data Set Study. Angew Chem Int Ed Engl 2023; 62:e202307372. [PMID: 37314001 DOI: 10.1002/anie.202307372] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/15/2023]
Abstract
N-X⋅⋅⋅- O-N+ halogen-bonded systems formed by 27 pyridine N-oxides (PyNOs) as halogen-bond (XB) acceptors and two N-halosuccinimides, two N-halophthalimides, and two N-halosaccharins as XB donors are studied in silico, in solution, and in the solid state. This large set of data (132 DFT optimized structures, 75 crystal structures, and 168 1 H NMR titrations) provides a unique view to structural and bonding properties. In the computational part, a simple electrostatic model (SiElMo) for predicting XB energies using only the properties of halogen donors and oxygen acceptors is developed. The SiElMo energies are in perfect accord with energies calculated from XB complexes optimized with two high-level DFT approaches. Data from in silico bond energies and single-crystal X-ray structures correlate; however, data from solution do not. The polydentate bonding characteristic of the PyNOs' oxygen atom in solution, as revealed by solid-state structures, is attributed to the lack of correlation between DFT/solid-state and solution data. XB strength is only slightly affected by the PyNO oxygen properties [(atomic charge (Q), ionization energy (Is,min ) and local negative minima (Vs,min )], as the σ-hole (Vs,max ) of the donor halogen is the key determinant leading to the sequence N-halosaccharin>N-halosuccinimide>N-halophthalimide on the XB strength.
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Affiliation(s)
- Rakesh Puttreddy
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, 40014, Jyväskylä, Finland
| | - J Mikko Rautiainen
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, 40014, Jyväskylä, Finland
| | - Shilin Yu
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, 40014, Jyväskylä, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. BOX 35, 40014, Jyväskylä, Finland
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5
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Rissanen K, Ward JS. Iodine(I) and Silver(I) Complexes Incorporating 3-Substituted Pyridines. ACS OMEGA 2023; 8:24064-24071. [PMID: 37426204 PMCID: PMC10324066 DOI: 10.1021/acsomega.3c03097] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/09/2023] [Indexed: 07/11/2023]
Abstract
Building upon the first report of a 3-acetaminopyridine-based iodine(I) complex (1b) and its unexpected reactivity toward tBuOMe, several new 3-substituted iodine(I) complexes (2b-5b) have been synthesized. The iodine(I) complexes were synthesized from their analogous silver(I) complexes (2a-5a) via a silver(I) to iodine(I) cation exchange reaction, incorporating functionally related substituents as 3-acetaminopyridine in 1b; 3-acetylpyridine (3-Acpy; 2), 3-aminopyridine (3-NH2py; 3), and 3-dimethylaminopyridine (3-NMe2py; 4), as well as the strongly electron-withdrawing 3-cyanopyridine (3-CNpy; 5), to probe the possible limitations of iodine(I) complex formation. The individual properties of these rare examples of iodine(I) complexes incorporating 3-substituted pyridines are also compared to each other and contrasted to their 4-substituted counterparts which are more prevalent in the literature. While the reactivity of 1b toward etheric solvents could not be reproduced in any of the functionally related analogues synthesized herein, the reactivity of 1b was further expanded to a second etheric solvent. Reaction of bis(3-acetaminopyridine)iodine(I) (1b) and iPr2O gave [3-acetamido-1-(3-iodo-2-methylpentan-2-yl)pyridin-1-ium]PF6 (1d), which demonstrated potentially useful C-C and C-I bond formation under ambient conditions.
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Ward JS, Sievänen EI, Rissanen K. Solid-state NMR Spectroscopy of Iodine(I) Complexes. Chem Asian J 2023; 18:e202201203. [PMID: 36734201 DOI: 10.1002/asia.202201203] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
Solid-state NMR has been applied to a series of Barluenga-type iodine(I) [L-I-L]PF6 (L=pyridine, 4-ethylpyridine, 4-dimethylaminopyridine, isoquinoline) complexes as their hexafluorophosphate salts, as well as their respective non-liquid ligands (L), their precursor silver(I) complexes, and the respective N-methylated pyridinium and quinolinium hexafluorophoshate salts. These results are compared and contrasted to the corresponding solution studies and single-crystal X-ray structures. As the first study of its kind on the solid-state NMR behavior of halogen(I) complexes, practical considerations are also discussed to encourage wider utilization of this technique in the future.
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Affiliation(s)
- Jas S Ward
- University of Jyvaskyla, Department of Chemistry, Jyväskylä, 40014, Finland
| | - Elina I Sievänen
- University of Jyvaskyla, Department of Chemistry, Jyväskylä, 40014, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, Jyväskylä, 40014, Finland
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7
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Ward JS, Martõnova J, Wilson LME, Kramer E, Aav R, Rissanen K. Carbonyl hypoiodites from pivalic and trimesic acid and their silver(I) intermediates. Dalton Trans 2022; 51:14646-14653. [PMID: 36093683 DOI: 10.1039/d2dt01988d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first tris(O-I-N) carbonyl hypoiodites have been synthesised based on trimesic acid and pyridine or 4-methylpyridine, with their structures definitively confirmed by single crystal X-ray diffraction (SCXRD). The more soluble carbonyl hypoiodites based on pivalic acid have also been studied via NMR, SCXRD, and computational analyses, enabling the study of the direct silver(I) precursor and intermediates of the resulting carbonyl hypoiodites generated using a range of substituted pyridines.
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Affiliation(s)
- Jas S Ward
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Jevgenija Martõnova
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - Laura M E Wilson
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Eric Kramer
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Riina Aav
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
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Wu Z, Wei J, Jiao T, Chen Q, Oyama M, Chen Q, Chen X. A lead-based room-temperature phosphorescent metal–organic framework sensor for assessing the peroxide value of edible oils. Food Chem 2022; 385:132710. [DOI: 10.1016/j.foodchem.2022.132710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 03/04/2022] [Accepted: 03/13/2022] [Indexed: 11/04/2022]
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Ward JS, Gomila RM, Frontera A, Rissanen K. Iodine(i) complexes incorporating sterically bulky 2-substituted pyridines. RSC Adv 2022; 12:8674-8682. [PMID: 35424827 PMCID: PMC8984907 DOI: 10.1039/d2ra01390h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/14/2022] [Indexed: 11/21/2022] Open
Abstract
The silver(i) and iodine(i) complexes of the 2-substituted pyridines 2-(diphenylmethyl)pyridine (1) and 2-(1,1-diphenylethyl)pyridine (2), along with their potential protonated side products, were synthesised to investigate the steric limitations of iodine(i) complex formation. The complexes were characterised by 1H and 1H–15N HMBC NMR, X-ray crystallography, and DFT calculations. The solid-state structures for the silver(i) and iodine(i) complexes were extensively compared to the literature and analysed by DFT to examine the influence of the sterically bulky pyridines and their anions. The silver(i) and iodine(i) complexes of two sterically bulky 2-substituted pyridines, along with their potential protonated side products, were synthesised to investigate the steric limitations of iodine(i) ion formation.![]()
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Affiliation(s)
- Jas S Ward
- University of Jyvaskyla, Department of Chemistry Jyväskylä 40014 Finland
| | - Rosa M Gomila
- Department of Chemistry, Universitat de les Illes Balears Crts de Valldemossa km 7.6 07122 Palma de Mallorca Baleares Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears Crts de Valldemossa km 7.6 07122 Palma de Mallorca Baleares Spain
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry Jyväskylä 40014 Finland
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10
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Taipale E, Ward JS, Fiorini G, Stares DL, Schalley CA, Rissanen K. Dimeric iodine( i) and silver( i) cages from tripodal N-donor ligands via the [N–Ag–N] + to [N–I–N] + cation exchange reaction. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01532j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexation of tripodal ligands with silver(I) salts generated M3L2 cage complexes that encapsulated anions within their cavities. Subsequent [N–Ag–N]+ to [N–I–N]+ cation exchange with I2 resulted in the corresponding halogen-bonded iodine(I) cages.
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Affiliation(s)
- Essi Taipale
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014 Jyväskylä, Finland
| | - Jas S. Ward
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014 Jyväskylä, Finland
| | - Giorgia Fiorini
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014 Jyväskylä, Finland
| | - Daniel L. Stares
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany
| | - Christoph A. Schalley
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014 Jyväskylä, Finland
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11
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Abstract
A detailed investigation of ligand exchange between iodine(I) ions in [N···I···N]+ halogen-bonded complexes is presented. Ligand exchange reactions were conducted to successfully confirm whether iodine(I) complex formation, via the classical...
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12
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Yu X, Li D, Wang K, Xia T, Xu C, Wu Z, Cheng L. The Covalent Au I-Au I Bond in (AuF) n ( n = 2∼4): A Perspective to Understand the Closed-Shell Au I···Au I Interaction. Inorg Chem 2021; 61:1051-1058. [PMID: 34965112 DOI: 10.1021/acs.inorgchem.1c03151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The nature of closed-shell AuI···AuI attraction is still a conundrum in theoretical chemistry. However, for Au2F2 with a zigzag conformation, the d10-d10 closed-shell interaction between the AuF monomers is demonstrated as a coordinate covalent bond. Chemical bonding analysis reveals that the strong AuI···AuI attraction is caused by the participation of the extraordinary active 5d orbital of Au. Based on our study, one of the 5d orbitals of the Au atom is activated to hybridize with its 6s and 6p orbitals to form hybridized dsp2 orbitals, where each Au atom is both an electron donor (Lewis base) and acceptor (Lewis Acid) in dimerization. Actually, the closed-shell AuI···AuI interaction in the zigzag conformation of Au2X2 (X = F, Cl, Br, I, or NH2) is covalent. Our results provide a rather simple but clear-cut example, where mysterious AuI···AuI attractions can be possibly explained by the covalent bond theory.
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Affiliation(s)
- Xinlei Yu
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Dan Li
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Kun Wang
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Tao Xia
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Chang Xu
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Zhenyu Wu
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China
| | - Longjiu Cheng
- Department of Chemistry, Anhui University, Hefei, Anhui 230601, PR China.,Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, PR China
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13
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Taipale E, Siepmann M, Truong KN, Rissanen K. Iodine(I) and Silver(I) Complexes of Benzoimidazole and Pyridylcarbazole Derivatives. Chemistry 2021; 27:17412-17419. [PMID: 34605571 DOI: 10.1002/chem.202103152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Indexed: 11/07/2022]
Abstract
The synthesis of iodine(I) complexes with either benzoimidazole or carbazole-derived sp2 N-containing Lewis bases is described, as well as their corresponding silver(I) complexes. The addition of elemental iodine to the linear two-coordinate Ag(I) complexes produces iodine(I) complexes with a three-center four-electron (3c-4e) [N-I-N]+ bond. The 1 H and 1 H-15 N HMBC NMR studies unambiguously confirm the formation of the complexes in all cases via the [N-Ag-N]+ →[N-I-N]+ cation exchange, with the 15 N NMR chemical shift change between 94 to 111 ppm when compared to the free ligand. The single crystal X-ray crystallographic studies on eight I+ complexes revealed highly symmetrical [N-I-N]+ bonds with I-N bond distances of 2.21-2.26 Å and N-I-N angles of 177-180°, whilst some of the corresponding Ag+ complexes showed a clear deviation from linearity with N-Ag-N angles of ca. 150° and Ag-N bond distances of 2.09-2.18 Å.
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Affiliation(s)
- Essi Taipale
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014, Jyväskylä, Finland
| | - Marcel Siepmann
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014, Jyväskylä, Finland
| | - Khai-Nghi Truong
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014, Jyväskylä, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, 40014, Jyväskylä, Finland
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14
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Holthoff JM, Weiss R, Rosokha SV, Huber SM. "Anti-electrostatic" Halogen Bonding between Ions of Like Charge. Chemistry 2021; 27:16530-16542. [PMID: 34409662 PMCID: PMC9293363 DOI: 10.1002/chem.202102549] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 12/15/2022]
Abstract
Halogen bonding occurs between molecules featuring Lewis acidic halogen substituents and Lewis bases. It is often rationalized as a predominantly electrostatic interaction and thus interactions between ions of like charge (e. g., of anionic halogen bond donors with halides) seem counter-intuitive. Herein, we provide an overview on such complexes. First, theoretical studies are described and their findings are compared. Next, experimental evidences are presented in the form of crystal structure database analyses, recent examples of strong "anti-electrostatic" halogen bonding in crystals, and the observation of such interactions also in solution. We then compare these complexes to select examples of "counter-intuitive" adducts formed by other interactions, like hydrogen bonding. Finally, we comment on key differences between charge-transfer and electrostatic polarization.
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Affiliation(s)
- Jana M. Holthoff
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Robert Weiss
- Institut für Organische ChemieFriedrich-Alexander-Universität Erlangen-NürnbergHenkestraße 4291054ErlangenGermany
| | | | - Stefan M. Huber
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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15
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Priola E, Giordana A, Mazzeo PP, Mahmoudi G, Gomila RM, Zubkov FI, Pokazeev KM, Valchuk KS, Bacchi A, Zangrando E, Frontera A. On the nature of recurrent Au⋯π motifs in tris(2,2'-bipyridine)M(II) (M = Fe, Co and Ni) dicyanoaurate(I) salts: X-ray analysis and theoretical rationalization. Dalton Trans 2021; 50:16954-16960. [PMID: 34617941 DOI: 10.1039/d1dt02632a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This manuscript reports the synthesis, X-ray characterization and DFT study of three new [M(bipy)3]2[Au(CN)2]3(X) (M = Fe, Co, and Ni; bipy = 2,2'-bipyridine; X = anion) ionic compounds. These salts are composed of [M(bipy)3]2+ dications and [Au(CN)2]- anions in a 2 : 3 ratio. The positive charge is compensated by X = Cl- anions in compounds 1 (M = Fe) and 2 (M = Co) and X = OH- in 3 (M = Ni). The three tridentate bipyridine ligands define the coordination of the M2+ cation, resulting in a nearly octahedral coordination sphere. The linear dicyanoaurate(I) anions are completely surrounded by a cradle of aromatic rings with Au-ring centroid distances below the sum of van der Waals radii, evidencing the existence of a specific Au⋯π attraction. This interaction has been analyzed in terms of the role of the Au-atom (Lewis acid or Lewis base) using DFT calculations combined with the quantum theory of atoms in molecules (QTAIM), noncovalent interaction plot index (NCIplot) and natural bond orbital (NBO) computational tools. The NBO suggests that the Au⋯π interaction is an example of a coinage bond in spite of the anionic nature of the acceptor and the cationic nature of the donor.
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Affiliation(s)
- Emanuele Priola
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy
| | - Alessia Giordana
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy
| | - Paolo P Mazzeo
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17A, 43124 Parma, Italy.,Biopharmanet-TEC, Università degli studi di Parma, via Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Ghodrat Mahmoudi
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh, Iran.
| | - Rosa M Gomila
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain.
| | - Fedor I Zubkov
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Kuzma M Pokazeev
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Karina S Valchuk
- Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Alessia Bacchi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17A, 43124 Parma, Italy.,Biopharmanet-TEC, Università degli studi di Parma, via Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain.
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16
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Yu S, Kalenius E, Frontera A, Rissanen K. Macrocyclic complexes based on [N⋯I⋯N] + halogen bonds. Chem Commun (Camb) 2021; 57:12464-12467. [PMID: 34734592 DOI: 10.1039/d1cc05616f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New 1-2 nm macrocyclic iodine(I) complexes prepared VIA a simple ligand exchange reaction manifest rigid 0.5-1 nm cavities that bind the hexafluorophosphate anion in the gas phase. The size of the cavities and the electrostatic interactions with the iodine(I) cations influence the anion binding properties of these macrocyclic complexes.
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Affiliation(s)
- Shilin Yu
- University of Jyvaskyla, Department of Chemistry, 40014, Jyväskylä, Finland.
| | - Elina Kalenius
- University of Jyvaskyla, Department of Chemistry, 40014, Jyväskylä, Finland.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122, Palma de Mallorca Baleares, Spain
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, 40014, Jyväskylä, Finland.
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17
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Kramer E, Yu S, Ward JS, Rissanen K. Dihypoiodites stabilised by 4-ethylpyridine through O-I-N halogen bonds. Dalton Trans 2021; 50:14990-14993. [PMID: 34671792 DOI: 10.1039/d1dt03324g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Four bis(O-I-N) compounds have been synthesised from various dihypoiodites and 4-ethylpyridine. The compounds were characterised in both the solution and solid states by NMR spectroscopy (1H, 15N), X-ray diffraction, and computational calculations.
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Affiliation(s)
- Eric Kramer
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Shilin Yu
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Jas S Ward
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
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18
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Yu S, Ward JS, Truong K, Rissanen K. Carbonyl Hypoiodites as Extremely Strong Halogen Bond Donors. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shilin Yu
- Department of Chemistry University of Jyvaskyla Survontie 9 B 40014 Jyväskylä Finland
| | - Jas S. Ward
- Department of Chemistry University of Jyvaskyla Survontie 9 B 40014 Jyväskylä Finland
| | - Khai‐Nghi Truong
- Department of Chemistry University of Jyvaskyla Survontie 9 B 40014 Jyväskylä Finland
| | - Kari Rissanen
- Department of Chemistry University of Jyvaskyla Survontie 9 B 40014 Jyväskylä Finland
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19
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Yu S, Ward JS, Truong K, Rissanen K. Carbonyl Hypoiodites as Extremely Strong Halogen Bond Donors. Angew Chem Int Ed Engl 2021; 60:20739-20743. [PMID: 34268851 PMCID: PMC8518949 DOI: 10.1002/anie.202108126] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Indexed: 12/19/2022]
Abstract
Neutral halogen-bonded O-I-N complexes were prepared from in situ formed carbonyl hypoiodites and aromatic organic bases. The carbonyl hypoiodites have a strongly polarized iodine atom with larger σ-holes than any known uncharged halogen bond donor. Modulating the Lewis basicity of the selected pyridine derivatives and carboxylates leads to halogen-bonded complexes where the classical O-I⋅⋅⋅N halogen bond transforms more into a halogen-bonded COO- ⋅⋅⋅I-N+ ion-pair (salt) with an asymmetric O-I-N moiety. X-ray analyses, NMR studies, and calculations reveal the halogen bonding geometries of the carbonyl hypoiodite-based O-I-N complexes, confirming that in the solid-state the iodine atom is much closer to the N-atom of the pyridine derivatives than its original position at the carboxylate O-atom.
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Affiliation(s)
- Shilin Yu
- Department of ChemistryUniversity of JyvaskylaSurvontie 9 B40014JyväskyläFinland
| | - Jas S. Ward
- Department of ChemistryUniversity of JyvaskylaSurvontie 9 B40014JyväskyläFinland
| | - Khai‐Nghi Truong
- Department of ChemistryUniversity of JyvaskylaSurvontie 9 B40014JyväskyläFinland
| | - Kari Rissanen
- Department of ChemistryUniversity of JyvaskylaSurvontie 9 B40014JyväskyläFinland
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20
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Priola E, Mahmoudi G, Andreo J, Frontera A. Unprecedented [d 9]Cu[d 10]Au coinage bonding interactions in {Cu(NH 3) 4[Au(CN) 2]} +[Au(CN) 2] - salt. Chem Commun (Camb) 2021; 57:7268-7271. [PMID: 34195712 DOI: 10.1039/d1cc02709c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The X-ray structure of the {Cu(NH3)4[Au(CN)2]}+[Au(CN)2]- salt is reported showing an unprecedented [d9]Cu[d10]Au coinage bond. The physical nature of the interaction has been studied using DFT calculations, including the quantum theory of atoms-in-molecules, the noncovalent interaction plot and the natural bond orbital analysis, revealing the nucleophilic role of the [d10]Au metal and the electrophilic role of [d9]Cu metal.
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Affiliation(s)
- Emanuele Priola
- Department of Chemistry, Universitá di Torino, Via Pietro Giuria 7, Torino 10125, Italy
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21
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Ward JS, Frontera A, Rissanen K. Iodonium complexes of the tertiary amines quinuclidine and 1-ethylpiperidine. Dalton Trans 2021; 50:8297-8301. [PMID: 34096945 DOI: 10.1039/d1dt01437d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Iodonium complexes incorporating tertiary amines have been synthesised to study and explore why such species comprised of alkyl amines are relatively rare. The complexes were characterised in solution (1H and 15N NMR spectroscopy) and the solid state (SCXRD), and analysed computationally.
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Affiliation(s)
- Jas S Ward
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122 Palma de Mallorca (Baleares), Spain
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, Jyväskylä 40014, Finland.
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22
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Ward JS, Frontera A, Rissanen K. Utility of Three-Coordinate Silver Complexes Toward the Formation of Iodonium Ions. Inorg Chem 2021; 60:5383-5390. [PMID: 33765391 PMCID: PMC8154410 DOI: 10.1021/acs.inorgchem.1c00409] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The work herein describes the synthesis of five three-coordinate silver(I) complexes comprising a bidentate ligand L1, either bpy (2,2'-bipyridyl) or bpyMe2 (4,4'-dimethyl-2,2'-dipyridyl), and a monodentate ligand L2, either mtz (1-methyl-1H-1,2,3-triazole), 4-Etpy (4-ethylpyridine), or 4-DMAP (N,N-dimethylpyridin-4-amine). Upon reaction of the three-coordinate silver(I) complexes with 0.5 equiv of I2, the reactions quantitatively produce a 1:1 pair of complexes of a four-coordinate silver(I) complex [Ag(L1)2]PF6 and a two-coordinate iodonium complex [I(L2)2]PF6. The combination of [Ag(bpyMe2)2]PF6 and [I(4-DMAP)2]PF6 gave rise to an I+···Ag+ interaction where the I+ acts as a nucleophile, only the second example of which, that was observed in both the solution (NMR) and solid (X-ray) states.
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Affiliation(s)
- Jas S. Ward
- Department
of Chemistry, University of Jyvaskyla, Jyväskylä 40014, Finland,
| | - Antonio Frontera
- Department
of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122 Palma de Mallorca, Baleares, Spain
| | - Kari Rissanen
- Department
of Chemistry, University of Jyvaskyla, Jyväskylä 40014, Finland,
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23
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Mondal I, Frontera A, Chattopadhyay S. On the importance of RH 3C⋯N tetrel bonding interactions in the solid state of a dinuclear zinc complex with a tetradentate Schiff base ligand. CrystEngComm 2021. [DOI: 10.1039/d0ce01864c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The tetrel bonding and π-stacking interactions in a new dinuclear zinc complex using a tetradentate N2O2 donor Schiff base have been analysed energetically using DFT calculations and several computational tools.
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Affiliation(s)
- Ipsita Mondal
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata - 700032
- India
| | - Antonio Frontera
- Departament de Quimica
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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24
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Ward JS, Frontera A, Rissanen K. Nucleophilic iodonium interactions (NIIs) in 2-coordinate iodine(i) and silver(i) complexes. Chem Commun (Camb) 2021; 57:5094-5097. [DOI: 10.1039/d1cc01505b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A range of Nucleophilic Iodonium Interaction (NII) complexes were synthesised by partial cation exchange, leading to the observation of the first NII-complex involving a 2-coordinate silver(i) complex.
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Affiliation(s)
- Jas S. Ward
- University of Jyvaskyla
- Department of Chemistry
- Jyväskylä 40014
- Finland
| | - Antonio Frontera
- Department of Chemistry
- Universitat de les Illes Balears
- Crts de Valldemossa km 7.6
- Palma de Mallorca Baleares 07122
- Spain
| | - Kari Rissanen
- University of Jyvaskyla
- Department of Chemistry
- Jyväskylä 40014
- Finland
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