Seven Zn(II) and Cd(II) 1D coordination polymers based on azine donor linkers and decorated with 2-thiophenecarboxylate: Syntheses, structural parallels, Hirshfeld surface analysis, and spectroscopic and inclusion properties

From 1D to 2D Cd(II) and Zn(II) Coordination Networks by Replacing Monocarboxylate with Dicarboxylates in Partnership with Azine Ligands: Synthesis, Crystal Structures, Inclusion, and Emission Properties

“…Recently, we reported a series of 1D Zn(II)/Cd(II) CPs comprising monocarboxylic 2-thiophenecarboxylic acid and different N, N -azine ligands where the criss-cross packing mode of rigid coordination chains facilitated an access to the significant amount of space in the crystal structures predisposed to the guest accommodation and exchange [26].…”

Synthesis and Single Crystal Structure Characterization of Dinuclear and Polymeric Mixed‐ligand Coordination Compounds of Zinc(II) and Cadmium(II) with the Bridging Ligand 1,2‐Bis(pyridin‐4‐ylmethylene)hydrazine

“…The other organic ligands in combination with 4‐bpmh in the library of mixed‐ligand Zn 2+ or Cd 2+ coordination compounds were: S,S'‐chelating (2‐hydroxyethyl)(propyl)carbamodithioate (S 2 CNR 2 ), [ 2 ] S,S'‐diisopropyldithiophosphato, [ 4 ] 2‐thiophenecarboxylate (2‐tpc), [ 6 ] para ‐chlorobenzoate ( p ‐clba), para ‐bromobenzoate ( p ‐brba), [ 8 ] saccharinate (C 7 H 5 NO 3 S, sac), [ 14 ] 2‐amino‐1,4‐benzene dicarboxylate (2‐NH 2 ‐1,4‐bdc), [ 21,35 ] 5‐amino‐1,3‐benzene dicarboxylate (5‐NH 2 ‐1,3‐bdc), [ 15 ] 1,3‐benzenedicarboxylate (1,3‐bdc), terephthalate (terep), [ 16,21,34 ] 5‐nitroisophthalate (nip), 5‐ tert ‐butylisophthalate (tbip), [ 22 ] benzene‐1,3,5‐tri carboxylate (btc), [ 24 ] biphenyl‐4,4'‐dicarboxylate (bpdc), [ 27 ] isonicotinate (C 6 H 5 NO 2 ), [ 18 ] 9,9‐dimethylfluorene‐2,7‐dicarboxylate (mfda), 9,9‐diethylfluorene‐2,7‐dicarboxylate (efda), [ 19 ] 1,4‐phenylene diacetate (1,4‐pdaa), 1,3‐adamantane diacetate (1,3‐adaa), [ 20 ] 2,5‐furandicarboxylate (fdc), [ 23 ] 4,4'‐sulfonyldibenzoilate (sdb), [ 26 ] glutarate (glu), 3‐methylglutarate (3m‐glu), pimelate (pim), succinate (suc), [ 28 ] 4,4'‐oxybis(benzoilate) (oba), [ 29,31,32,33 ] 4‐(4‐carboxyphenoxy)phthalate (cpop), [ 17 ] 4,4'‐(hexaflouroisopropylene)bis(benzoilate) (hfipbba). [ 30 ]…”

“…Among these coordination compounds, several structure arrays have been observed and studied: the mononuclear structure in [Cd(C 6 H 12 NOS 2 ) 2 (4‐bpmh) 2 ] [ 2 ] and the dinuclear structure in [Cd(S 2 P(O i Pr) 2 ) 2 (4‐bpmh) 0.5 ] 2 , [ 4 ] 1D coordination polymers with linear chains structure in [Zn 2 (4‐bpmh)(2‐tpc) 4 ] n , [Cd(4‐bpmh) 2 (2‐tpc) 2 ] n , [Cd(4‐bpmh)(NCS) 2 (DMSO) 2 ] n and {[Zn(4‐bpmh)](C 7 H 7 SO 3 ) 2 (C 2 H 5 OH) 2 ] n , [ 6,7,9 ] with zigzag chains structure in [Zn(4‐bpmh)(NO 2 ) 2 ] n , [ 10 ] ladder chains structure in {[Cd 2 (4‐bpmh) 3 (sac) 4 ] · 2CH 2 Cl 2 } n , [ 14 ] step‐ladder chains structure in [Cd(S 2 P(O i Pr) 2 ) 2 (4‐bpmh)] n , [ 4 ] triple and triple‐stranded ladder chains structure in [Zn 6 (4‐bpmh) 3 ( p ‐clba) 6 (μ 3 ‐OH) 4 ]( p ‐clba) 2 · (CH 3 OH), and [Zn 6 (4‐bpmh) 3 ( p ‐brba) 6 (μ 3 ‐OH) 4 ]( p ‐brba) 2 · (CH 3 OH) and {[Cd 3 (4‐bpmh) 3 (OAc) 4 (NCS) 2 (DMSO) 2 ]} n , [ 7,8 ] 2D coordination polymers with layered structure in {[Zn(1,3‐adaa)(4‐bpmh)]} n and {[Cd(1,3‐adaa)(4‐bpmh)]} n , [ 20 ] pillared‐bilayer structure in {[Zn 2 (NH 2 ‐bdc) 2 (4‐bpmh)] · (H 2 O) 4 } n [Cd 2 (isonicotinate) 4 (4‐bpmh)(H 2 O)] n , [ 15,18 ] double‐layered structure in {[Zn(1,3‐bdc)(4‐bpmh)] · 2H 2 O} n , {[Zn 2 (Hnip)(4‐bpmh)(nip) 2 ( μ 3 ‐OH)], [ 16,22 ] 2D interpenetration structure in [Zn 2 (sdb) 2 (4‐bpmh)] · 2DMF, [Cd(4‐bpmh)(3m‐glu)(H 2 O)] · H 2 O, [ 26,28 ] and 3D coordination polymers with pillared‐layer structure in [Zn 3 (cpop) 2 (4‐bpmh)(H 2 O) 2 ] n , [Cd 3 (btc) 2 (4‐bpmh) 2 ], {[Zn(1,4‐pdaa)(4‐bpmh)]} n , [Cd 3 (4‐bpmh) 3 (glu) 2 (H 2 O) 2 ](NO 3 ) 2 · (4‐bpmh) 0.5 · (H 2 O) 8 , [Zn(pim)(4‐bpmh)], [Zn(suc)(4‐bpmh)], [Cd 2 (oba) 2 (4‐bpmh) 2 ] n · (DMF) x , [Zn 2 (oba) 2 (4‐bpmh)] n · (DMF) x , [{Zn(hfipbba)(4‐bpmh) 0.5 } · H 2 O], [Cd(2‐NH 2 ‐bdc)(4‐bpmh) 0.5 ] · DMF · H 2 O} n , [ 17,24,28,29,30,33,35 ] bipillared‐layer interpenetrating structure in [Cd(2‐NH 2 ‐bdc)(4‐bpmh) 0.5 ] · DMF · H 2 O} n , [ 35 ] pillared‐bilayer interpenetrating structure in {[Cd(bdc)(4‐bpmh)]} n · 2 n (H 2 O), {[Cd(2‐NH 2 bdc)(4‐bpmh)]} n · 2 n (H 2 O), [{Cd 2 (fdc) 2 (4‐bpmh) 3 } · 1.5(4‐bpmh) · 2(H 2 O)], [ 21,23 ] 3D interpenetrating structure in [Zn 2 (mfda) 2 (4‐bpmh)] · DMF · H 2 O, [Cd 2 (mfda) 2 (4‐bpmh) 2 ] · DMF · H 2 O, [Zn 2 (efda) 2 (4‐bpmh)] · (DMF) 0.25 , {[Zn 3 (μ 4 ‐bpdc) 3 (4‐bpmh)] · 5DMF} n , {[Zn 2 (μ 4 ‐bpdc) 2 (μ‐bpdb)] · 7DMF} n , and {[Zn(4‐bpmh) 0.5 (terep)](H 2 O)} n [ 19,27,34 ] with assembled 2D bilayers in {[Zn(tbip)(4‐bpmh) 1.5 ] CH 3 OH} n . [ 22 ] In order to figure out the structure of the mentioned organic ligands and their Zn/Cd coordination structures in combination with 4‐bpmh (CCDC reference number), Table S1 has been provided in the Supporting Information.…”

“…1,2-Bis(pyridin-4-ylmethylene)hydrazine (4-bpmh, Scheme 1) [1] is a neutral multidentate linker containing up to four N-coordination sites. [2,3] 4-bpmh usually plays a role as a long linear bridging ligand via both terminal pyridyl nitrogen atoms in dinuclear, polynuclear coordination compounds, [4,5] multi-dimensional coordination polymers (CPs), [6][7][8][9][10][11][12][13][14][15][16][17][18][19] and porous coordination polymers (PCPs). [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Furthermore, it has been observed that 4-bpmh is able to undergo weak interactions to form supramolecular architectures.…”

“…The structures and the solid-state supramolecular interactions for studying the crystal packing fashions of 1- Database (CSD) search, the function of 4-bpmh has been actively studied as a bidentate bridging ligand or a spacer in combination with other organic ligands in Zn 2+ and Cd 2+ (d 10 metals) coordination compounds. The other organic ligands in combination with 4-bpmh in the library of mixed-ligand Zn 2+ or Cd 2+ coordination compounds were: S,SЈ-chelating (2-hydroxyethyl)(propyl)carbamodithioate (S 2 CNR 2 ), [2] S,SЈ-diisopropyldithiophosphato, [4] 2thiophenecarboxylate (2-tpc), [6] para-chlorobenzoate (p-clba), para-bromobenzoate (p-brba), [8] saccharinate (C 7 H 5 NO 3 S, sac), [14] 2-amino-1,4-benzene dicarboxylate (2-NH 2 -1,4bdc), [21,35] 5-amino-1,3-benzene dicarboxylate (5-NH 2 -1,3bdc), [15] 1,3-benzenedicarboxylate (1,3-bdc), terephthalate (terep), [16,21,34] 5-nitroisophthalate (nip), 5-tert-butylisophthalate (tbip), [22] benzene-1,3,5-tri carboxylate (btc), [24] biphenyl-4,4Ј-dicarboxylate (bpdc), [27] isonicotinate (C 6 H 5 NO 2 ), [18] 9,9dimethylfluorene-2,7-dicarboxylate (mfda), 9,9-diethylfluorene-2,7-dicarboxylate (efda), [19] 1,4-phenylene diacetate (1,4-ARTICLE pdaa), 1,3-adamantane diacetate (1,3-adaa), [20] 2,5-furandicarboxylate (fdc), [23] 4,4Ј-sulfonyldibenzoilate (sdb), [26] glutarate (glu), 3-methylglutarate (3m-glu), pimelate (pim), succinate (suc), [28] 4,4Ј-oxybis(benzoilate) (oba), [29,31,32,33] 4-(4carboxyphenoxy)phthalate (cpop), [17] 4,4Ј-(hexaflouroisopropylene)bis(benzoilate) (hfipbba). [30] Among these coordination compounds, several structure arrays have been observed and studied: the mononuclear structure in [Cd(C 6 H 12 NOS 2 ) 2 (4-bpmh) 2 ] [2] and the dinuclear structure in [Cd(S 2 P(OiPr) 2 ) 2 (4-bpmh) 0.5 ] 2 , [4] 1D coordination polymers with linear chains structure in [Zn 2 (4- [6,…”