Crystal and molecular structure of bis[.beta.-methylmercaptoethylamine]copper(II) diperchlorate

Ou, Chia Chih; Miskowski, Vincent M.; Lalancette, Roger A.; Potenza, Joseph A.; Schugar, Harvey J.

doi:10.1021/ic50166a044

Cited by 16 publications

(5 citation statements)

References 14 publications

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“…For this model, which we report, CI-O distances ranged from 1.25 (6) to 1.67 (9) A with an average of 1.42 A while the O-C1-O angles ranged from 90 (3) to 127 (4) ° with an average of 109 ° . These averages agree well with values reported for perchlorate groups where disorder was not a problem (Ou, Miskowski, Lalancette, Potenza & Schugar, 1976) while the ranges are approximately the same as those found for other structures with disordered perchlorate groups (Jungst & Stucky, 1974;Curtis, McCormick & Waters, 1973). Several attempts to model the disordered ethylamino group, by allowing it to occupy either two or three sites, proved unrewarding.…”

supporting

confidence: 88%

Tetrakis(N,N'-diethylthiourea)cobalt(II) diperchlorate

Fawcett¹,

Fehskens²,

Potenza³

et al. 1979

Acta Crystallogr Sect B

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supporting

confidence: 88%

Tetrakis(N,N'-diethylthiourea)cobalt(II) diperchlorate

Fawcett¹,

Fehskens²,

Potenza³

et al. 1979

Acta Crystallogr Sect B

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“…130° as is found in Cu(NH2CH2C-H2SCH3)z(C104)z. 23 Examination of the packing diagram shows that the C104-ion in C u ( p y~)~( C l O~)~ is experiencing a tight fit in the lattice. The Cu-O(2)-Cl angle is large apparently to minimize nonbonded interactions between C10, polymer,20 where Cu-N = 2.529 (9) i .…”

Section: Resultsmentioning

confidence: 99%

“…This is an unusual situation, for such a Cu-O-Cl angle is generally ca. 130°as is found in Cu(NH2CH2C-H2SCH3)2(C104)2 23. Examination of the packing diagram shows that the C104" ion in Cu(pyz)2(C104)2 is experiencing a tight fit in the lattice.…”

mentioning

confidence: 93%

Crystal structure and magnetic properties of bis(pyrazine)copper(II) perchlorate, Cu(pyz)2(ClO4)2, a two-dimensional Heisenberg antiferromagnet

Darriet¹,

Haddad²,

Duesler³

et al. 1979

Inorg. Chem.

131

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The crystal and molecular structure of Cu(py~)~(ClO,)~, where pyz is pyrazine, has been determined by using heavy-atom, least-squares, X-ray methods for 1027 reflections measured on a computer-automated four-circle diffractometer. The complex crystallizes in the space group C2/m in a unit cell with a = 14.123 (4) A, b = 9.781 (2) A, c = 8.984 (2) A, /3 = 147.12(2)O, pow = 2.08 (1) g/cm3, and paid = 2.09 g/cm3. The structure was refined to final discrepancy indices of R = 0.052 and Rw = 0.069. The complex consists of sheets of copper(I1) ions bridged by ambidentate pyrazine ligands. The distance between two adjacent sheets is 7.012 A. The dihedral angle between the plane of each pyrazine ligand and the sheet in which it is located is 66.1'. The coordination geometry a b u t each co per(I1) ion is that of a tetragonally elongated octahedron.where each copper(I1) ion is bonded strongly [Cu-N = 2.062 (3) 11 to four pyrazine ligands and weakly [Cu-0 = 2.373 (12) A] to two perchlorate ions. The magnetic susceptibility vs. temperature data (4.2-285 K) were least-squares fit to a theoretical equation for a two-dimensional Heisenberg antiferromagnet.

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“…Our long-term interest in copper and sulfur chemistry has led us to prepare various stable thioether, thiolate, persulfide, disulfide, and cluster complexes of Cu(II) and/or Cu(I). We now present a first approach toward developing a detailed assignment of the individual ligand Rydberg, LF, LMCT, MLCT, and possible MMCT absorptions in mixed-valence polynuclear Cu(I)/Cu(II) cluster complexes containing bridging thiolate ligands.…”

Section: Introductionmentioning

confidence: 99%

Charge-Transfer Spectra of Structurally Characterized Mixed-Valence Thiolate-Bridged Cu(I)/Cu(II) Cluster Complexes

et al. 2002

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A series of Cu(II) and Cu(I)/Cu(II) complexes containing the cis-N(amine)(2)S(thiolate)(2) copper complex rac-2 has been synthesized to provide a basis for understanding the charge-transfer spectra of mixed-valence thiolate-bridged Cu(I)/Cu(II) complexes. In combination with Cu(Me(2)-13-N(4)ane), rac-2 yields a monobridged dinuclear homovalent adduct, rac-5, while reaction with CuCl yields the mixed-valance pentanuclear complex rac-6. In the presence of Cu(II)(acac)(2), chiral R,R-1 reacts to form a mixed-valence pentanuclear cation R,R-7. rac-6 exhibits a relatively short Cu(I). Cu(II) contact [2.8231(9) A] and associated structural features that suggest the presence of a weak Cu(I).Cu(II) interaction in a valence-trapped system. Additional structural features in rac-6 and R,R-7 include singly and doubly bridging thiolates, three- and four-coordinated Cu(I) ions, and varying Cu(I) ligand sets. These features extend the types and complexities of electronic absorptions significantly. Spectra of rac-6 and R,R-7 exhibit multiple overlapping absorptions over the entire visible and ultraviolet spectral regions studied, consonant with these observations. Trends resulting from variations in structure type and oxidation state permit a first approach toward developing a detailed assignment of the individual ligand Rydberg, LF, LMCT, MLCT, and possible MMCT absorptions in these complexes.

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Crystal and molecular structure of bis[.beta.-methylmercaptoethylamine]copper(II) diperchlorate

Cited by 16 publications

References 14 publications

Tetrakis(N,N'-diethylthiourea)cobalt(II) diperchlorate

Tetrakis(N,N'-diethylthiourea)cobalt(II) diperchlorate

Crystal structure and magnetic properties of bis(pyrazine)copper(II) perchlorate, Cu(pyz)2(ClO4)2, a two-dimensional Heisenberg antiferromagnet

Charge-Transfer Spectra of Structurally Characterized Mixed-Valence Thiolate-Bridged Cu(I)/Cu(II) Cluster Complexes

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