The structure of bis[dichloro-6-mercaptopuriniumcopper(I)] dihydrate: a refinement

Coordination variability of CuIin multidonor heterocyclic thioamides: synthesis, crystal structures, luminescent properties and ESI-mass studies of complexes

“…This behavior is unlike that shown by purine-6-thione (purSH 2 ), which ruptured both the Cu-halogen bonds (Cl, Br) in [Cu(k 2 -N,S-purSH)(PPh 3 ) 2 ]$CH 3 OH, or bonded to the metal center as the neutral ligand in its complexes with copper(I) halides. [36][37][38] With acetate as the counter anion, purSH 2 formed mononuclear Cu(k 1 N,k 1 S-purS)(PPh 3 ) 2 ]$CH 3 OH 2a and dinuclear [Cu 2 (k 1 N,m-S-purS) 2 (PPh 3 ) 2 ] 2b complexes. Thiouracil did not rupture Cu-halogen bonds and formed the complex 3, a L 2 ] (L 1 ¼ Ph 2 P-CH 2 -CH 2 -PPh 2 ; L 2 ¼ pyridine-2-thione) was reported from this laboratory.…”

“…Considering the importance of copper complexes with N/S donor ligands, it was decided to pursue copper chemistry with multifunctional heterocyclic thioamides, as shown in Scheme 1, having the propensity to bind to more than one metal ion. Coordination chemistry of copper(I) with pyrimidine-2-thione, [8][9][10][11][12][13]35 purine-6-thione, [36][37][38] 2-thiouracil, 39 2,4-dithiouracil 40,41 and 2,4,6-trimercaptotriazine is limited. 35,42,43 Herein, it is planned to react copper(I) salts with multifunctional heterocyclic thioamides (Scheme 1) with the objective of obtaining mono-, di-and polynuclear copper complexes by changing the number of donor atoms in organic thiobases.…”

1, 9‐Dihydro‐purine‐6‐thione Derivatives of the d8–d10 Metal Ions (PdII, PtII, and CuI): Synthesis, Spectroscopy, and Structures

“…There are a few complexes of 1, 9‐dihydro‐purine‐6‐thione (puSH 2 , structure IIIa and IIIb tautomers, Scheme ), or its derivatives reported with these metals, namely, [Pd(κ 2 ‐N, S‐puS‐9‐CH 2 Ph) 2 ] · L {L = MeC(O)NMe 2 ; κ 2 ‐S, N‐puS‐9‐CH 2 Ph = 9‐benzyl‐6‐mercaptopurine},29 [Cu I 2 Cl 2 (μ‐Cl) 2 (κ 1 ‐S‐puSH 3 ) 2 ], and [Cu I 2 Cl 4 (κ 2 ‐μ‐S‐puSH 3 ) 2 ] (puSH 3 + is protonated puSH 2 ] 30,31. The coordination chemistry of 1, 9‐dihydro‐purine‐6‐thione remains essentially unexplored and thus in this paper, reactions of 1, 9‐dihydro‐purine‐6‐thione (structure III) with palladium(II), platinum(II), and copper(I) in the presence of mono‐ and di‐tertiaryphosphines are described.…”

Συνθεση Και Μελετη Μικτων Συμπλοκων Ενωσεων Του Cu(i) Με Συναρμογες Ετεροκυκλικες Θειονες Και Τρις Τολουολοφωσφινες

“…Αρχικά γίνεται ο προσδιορισμός της συμμετρίας και των κρυσταλλικών σταθερών της κυψελίδας. Αυτό επιτυγχάνεται με μετατροπή των γωνιών χ, φ και ω, που υπολογίζονται από την περίθλαση που παθαίνει η χρησιμοποιούμενη ακτινο βολία για τις έντονες ανακλάσεις, σε συντεταγμένες x, y και z με τη βοήθεια των σχέσεων [124]: [136]. Είναι όμως μεγαλύτερη από αυτήν που παρατηρείται σε μονομερή σύμπλοκα με τριγωνική δομή.…”