Ag2(O2CCCl3)2(HO2CCCl3)(IC6H5), The first example of a complex containing a bridging iodo carbon ligand

Powell, John Wesley; Horvath, Michael J.; Lough, Alan J.

doi:10.1016/0022-328x(93)80447-j

Cited by 9 publications

(5 citation statements)

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“…The overall result of this arrangement is a supramolecular ladderlike network virtually based on covalent bonding interactions. The Ag−I(1) bond length of 3.053(4) Å is extra long compared with those in previously reported iodocarbon−silver complexes (2.8−3.0 Å) ).…”

Section: Resultsmentioning

confidence: 58%

“…They are very weak bases so that the coordination to transition metal centers is labile and the RX−M bonds can be easily broken by nucleophilic attack. − Recent research results from different research groups have shown that silver(I) is a favorable and fashionable building block for coordination polymers . However, fully characterized examples of coordination complexes of halocarbon ligands with Ag(I) ions are mainly restricted to alkyl halides, , To date, the utility of the aryl halide ligands in the synthesis of high-nuclearity coinage metal complexes remains virtually unexplored . This is surprising in that aryl halides appear to be equally extremely versatile and easily handled ligands.…”

Section: Introductionmentioning

confidence: 99%

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Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Ino

Munakata

et al. 2000

Inorg. Chem.

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This paper reports novel silver polymers, built with iodine--silver interactions, with interesting structural motifs. Four silver(I) coordination polymers of the aryl iodide derived ligands, triiodobenzoic acid (HL1), tris(4-iodophenyl)amine (L2), and 5,7-diiodo-8-hydroxyquinoline (HL3), have been synthesized and characterized by X-ray crystallography. Treatment of Ag(CH3COO) with HL1 yielded [Ag(L1)] (1), whose structural analysis revealed 2D layers of ladders connected through weak Ag...I interaction. Reactions of AgClO4 and L2 in benzene and nitrobenzene afforded, respectively, two different products, [Ag(L2)(H2O)]ClO4.C6H6(2) and [Ag(L2)(ClO4)](3). While the structure of 2 could be described as a 2D layer of square and octagons perpendicular to [100], complex 3 is formed by 2D layers of the same topology of 2 (8(2).4), alternating as ABAB. In contrast, complex 4, [Ag2(H2L3)(CF3SO3)3], obtained by reaction of Ag(CF3SO3) and HL3, was found to consist of a 2D layer based on columnar arrays AgH2L3-Ag(triflate). The solid-state FT-IR and 109Ag NMR spectra of theses complexes are discussed on the basis of their crystal structures.

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Section: Resultsmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Ino

Munakata

et al. 2000

Inorg. Chem.

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“…Only 2 of the 31 crystallographically different coordinated halogen atoms found in 7 silver(I) hexahalocarborane salts by Xie et al, ,, Br(12) in Ag(CB 11 H 6 Br 6 ) and Br(12) in Ag(CH 3 CB 11 H 5 Br 6 ), are apical. Only 2 (or perhaps 3) apical organoiodine atoms were found among the over 50 examples of coordinated organoiodine atoms in Powell's extensive studies of iodocarbon ligands coordinated to Ag + .…”

Section: Resultsmentioning

confidence: 99%

“…Only 2 (or perhaps 3) apical organoiodine atoms were found among the over 50 examples of coordinated organoiodine atoms in Powell's extensive studies of iodocarbon ligands coordinated to Ag + .…”

Section: Resultsmentioning

confidence: 99%

Weakly Coordinating Anions: Crystallographic and NQR Studies of Halogen−Metal Bonding in Silver, Thallium, Sodium, and Potassium Halomethanesulfonates

Wulfsberg¹,

Parks²,

Rutherford³

et al. 2002

Inorg. Chem.

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35Cl, (79,81)Br, and (127)I NQR (nuclear quadrupole resonance) spectroscopy in conjunction with X-ray crystallography is potentially one of the best ways of characterizing secondary bonding of metal cations such as Ag(+) to halogen donor atoms on the surfaces of very weakly coordinating anions. We have determined the X-ray crystal structure of Ag(O(3)SCH(2)Cl) (a = 13.241(3) A; b = 7.544(2) A; c = 4.925(2) A; orthorhombic; space group Pnma; Z = 4) and compared it with the known structure of Ag(O(3)SCH(2)Br) (Charbonnier, F.; Faure, R.; Loiseleur, H. Acta Crystallogr., Sect. B 1978, 34, 3598-3601). The halogen atom in each is apical (three-coordinate), being weakly coordinated to two silver ions. (127)I NQR studies on Ag(O(3)SCH(2)I) show the expected NQR consequences of three-coordination of iodine: substantially reduced NQR frequencies nu(1) and nu(2) and a fairly small NQR asymmetry parameter eta. The reduction of the halogen NQR frequency of the coordinating halogen atom in Ag(O(3)SCH(2)X) becomes more substantial in the series X = Cl < Br < I, indicating that the coordination to Ag(+) strengthens in this series, as expected from hard-soft acid-base principles. The numbers of electrons donated by the organic iodine atom to Ag(+) have been estimated; these indicate that the bonding to the cation is weak but not insignificant. We have not found any evidence for the bonding of these organohalogen atoms to another soft-acid metal ion, thallium. A scheme for recycling of thallium halide wastes is included.

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“…The Ag-I bond lengths vary from 2.81 l(1) to 2.921(1) 8, with the longer ones being associated with the smallest I-Ag-I bond angle. The C-I bond lengths range from 2.115 (12) to 2.139(9) 8, and the Ag-I-C bond angles vary from 97.4(3) to 104.2(3)". The 'H NMR spectrum in CD2C12 exhibits a singlet at 6 3.98 which represents a downfield shift uis-h-uis free CH212 of 0.08 ppm.…”

Section: Resultsmentioning

confidence: 99%

Silver–iodocarbon complexes: crystal structures of eight compounds obtained from the reactions of AgPF₆or AgNO₃with CH₂I₂, I(CH₂)₃I and simple aryl iodides

Powell¹,

Horvath²,

Lough³

1996

J. Chem. Soc., Dalton Trans.

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Ag2(O2CCCl3)2(HO2CCCl3)(IC6H5), The first example of a complex containing a bridging iodo carbon ligand

Cited by 9 publications

References 10 publications

Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Weakly Coordinating Anions: Crystallographic and NQR Studies of Halogen−Metal Bonding in Silver, Thallium, Sodium, and Potassium Halomethanesulfonates

Silver–iodocarbon complexes: crystal structures of eight compounds obtained from the reactions of AgPF₆or AgNO₃with CH₂I₂, I(CH₂)₃I and simple aryl iodides

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Ag2(O2CCCl3)2(HO2CCCl3)(IC6H5), The first example of a complex containing a bridging iodo carbon ligand

Cited by 9 publications

References 10 publications

Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

Weakly Coordinating Anions: Crystallographic and NQR Studies of Halogen−Metal Bonding in Silver, Thallium, Sodium, and Potassium Halomethanesulfonates

Silver–iodocarbon complexes: crystal structures of eight compounds obtained from the reactions of AgPF6or AgNO3with CH2I2, I(CH2)3I and simple aryl iodides

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Silver–iodocarbon complexes: crystal structures of eight compounds obtained from the reactions of AgPF₆or AgNO₃with CH₂I₂, I(CH₂)₃I and simple aryl iodides