Nickel(II) Thiolate Complexes with a Flexible cyclo‐{Ni₁₀S₂₀} Framework

Abstract

A tale of two toroids: New cyclic nickel(II) thiolate complexes (see structures; Ni green, S red, C purple) were synthesized by stepwise introduction of two kinds of thiolates to a nickel(II) center. The flexible {Ni10S20} core configuration crystallizes in different forms, either circular or ellipsoidal, depending on the presence or absence of an encapsulated guest molecule.

Tiara-like Octanuclear Palladium(II) and Platinum(II) Thiolates and Their Inclusion Complexes with Dihalo- or Iodoalkanes

“…[8][9][10][11][12][13] Tiara-like complexes, which are also polynuclear group 10 transition-metal thiolates and are characterized by toroidal architectures, have been studied extensively, both in terms of their intriguing structural features and with respect to the preparation of monodisperse metal sulfide nanoparticles, 14 non-linear optical materials, 15 photoactive water-reducing catalysts, [16][17] and host-guest chemistry. 15,[18][19][20][21] Tiara-like nickel complexes have received considerable attention resulting in the preparation of complexes with a variety of ring sizes [Ni(-SR) 2 ] n (n = [4][5][6][8][9][10][11][12]. 15,[17][18][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] In contrast, although several tiara-like hexanuclear palladium complexes have been reported, 9,14,…”

“…15,[18][19][20][21] Tiara-like nickel complexes have received considerable attention resulting in the preparation of complexes with a variety of ring sizes [Ni(-SR) 2 ] n (n = [4][5][6][8][9][10][11][12]. 15,[17][18][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] In contrast, although several tiara-like hexanuclear palladium complexes have been reported, 9,14,19,[36][37][38][39][40][41][42][43] only one octanuclear complex, i.e., [Pd(-S n Pr) 2 ] 8 , is known, and was obtained as a mixture with hexanuclear [Pd(-S n Pr) 2 ] 6 . 19 For platinum, infinite thiolates and selenolates [Pt(-ER) 2 ] ∞ (E = S, Se) have been synthesized using a solvothermal method; …”

One-pot syntheses, structures and properties of two novel 1-D copper complexes: [CuII2(Hbpdc)2Cl2]2·2H2O and CuI(H2bpdc)Cl (H2bpdc = 2,2′-bipyridyl-5,5′-dicarboxylic acid)

“…In past several decades, increasing attention has been paid on metal-organic complexes in supramolecular and material chemistry due to their intriguing molecular topologies and crystal packing motifs as well as their versatile applications in catalysis, sorption, optoelectronics, magnetism and molecular recognition [1,2]. Among these fields, metal carboxylate materials are particularly interesting in that they not only can assembly fascinating structures resulting from the presence of multi-carboxylic function, but also the carboxylic groups act as linkers between inorganic moieties [1].…”

“…Although 2,2′-bipyridyl-4,4′-dicarboxylic acid as a polydentate ligand has been extensively exploited [10][11][12][13][14][15][16][17], investigations on 2,2′-bipyridyl-5,5′-dicarboxylic acid (H 2 bpdc) as a multifunctional ligand remain largely unexplored [18][19][20][21][22][23][24][25]. Obviously, most of reported metal complexes are the noble metal derivatives, which provides us an excellent opportunity for exploring the reaction of the first-row transition-metal/lanthanide cations with H 2 bpdc based on the following considerations: (a) the flexible multifunctional H 2 8.24. The phase purity of 1 and 2 was characterized by PXRD pattern of the bulk product ( Fig.…”

A novel Borromean (6,3) net assembled by nest-shaped clusters as knots

“…So far, the construction of cluster-containing supramolecular compounds has mostly focused on using metal-oxygen clusters as building blocks [16][17][18][19][22][23][24][25][26][27][28]. There have only been a few reports on the supramolecular compounds with metal-sulfur clusters as building blocks [29][30][31][32][33][34][35][36]. Herein, we report an infinite 2D coordination polymer with a Borromean topology, which consists of heterobimetallic fWOS 3 Cu 3 g cluster units as connecting knots.…”