Synthesis and Crystal Structure of a β—Lactam Derivative of 2,4—Diary

１ＩＮＴＲＯＤＵＣＴＩＯＮ１,５ｂｅｎｚｏｔｈｉａｚｅｐｉｎｅｓｐｏｓｅｓｐｏｔｅｎｔｉａｌｂｉｏｌｏｇｉｃａｌａｃｔｉｖｉｔｉｅｓ〔１〕．ＣｙｃｌｏａｄｄｉｔｉｏｎｒｅａｃｔｉｏｎｓａｔｔｈｅｉｒＣ＝Ｎｄｏｕｂｌｅｂｏｎｄｈａｖｅａｒｏｕｓｅｄｃ...     

Synthesis of 4—Aryl—3,4—dihydropyrimidinones Using Microwaveassisted Solventless Biginelli Reaction

Ｉｎｔｒｏｄｕｃｔｉｏｎ4 Ａｒｙｌ 3,4 ｄｉｈｙｄｒｏｐｙｒｉｍｉｄｉｎｏｎｅｓ (4)ａｓａｃｏｒｅｗｅｒｅｏｂｓｅｒｖｅｄｉｎｓｏｍｅｂｉｏｌｏｇｉｃａｌｌｙｉｍｐｏｒｔａｎｔｃｏｍｐｏｕｎｄｓ .1Ｍｏｒｅｒｅｃｅｎｔｌｙ ,ｄｉｈｙｄｒｏｐｙｒｉｍｉｄｉｎｏｎｅｓａｒｅｓｈｏｗｎｔｏｂｅａｕｓｅｆｕｌｔｏｏｌｆｏｒｓｔｕｄｙｉｎｇｄｙｎａｍｉｃｃｅｌｌｕｌａｒｐｒｏｃｅｓｓａｎｄｃａｎｂｅｃｏｎｓｉｄｅｒｅｄａｓａｎｅｗｌｅａｄｆｏｒｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆａｎｔｉ ｃａｎｃｅｒｄｒｕｇ…     

Determination of Ascorbic Acid Using a New Oscillating chemical System of Lactic Acid—Acetone—BrO3^— —Mn^2 —H2SO4

ＩｎｔｒｏｄｕｃｔｉｏｎＯｓｃｉｌｌａｔｉｎｇｒｅａｃｔｉｏｎｓａｒｅｃｏｍｐｌｅｘｄｙｎａｍｉｃｓｙｓｔｅｍｓｔｈａｔｉｎｖｏｌｖｅｐｅｒｉｏｄｉｃｃｈａｎｇｅｓｉｎｔｈｅｃｏｎｃｅｎｔｒａｔｉｏｎｏｆｓｏｍｅｉｎｇｒｅｄｉｅｎｔｓ (ｗｈｅｔｈｅｒａｒｅａｃｔａｎｔ,ａｐｒｏｄｕｃｔｏｒａｎｉｎｔｅｒｍｅ ｄｉａｔｅ)ｗｉｔｈｔｉｍｅ .Ｔｈｅｓｉｍｉｌａｒｉｔｉｅｓｂｅｔｗｅｅｎｌｉｆｅｐｒｏｃｅｓｓｅｓｔｈａｔｅｘｈｉｂｉｔｏｓｃｉｌｌａｔｉｎｇｂｅｈａｖｉｏｒａｎｄｏｓｃｉｌｌａｔｉｎｇｃｈ…     

Crystal Structure and EPR Spectra of cis—Dioxo—molybdenum（V） Complex with o—Aminophenol

ＩｎｔｒｏｄｕｃｔｉｏｎＭｏｌｙｂｄｅｎｕｍｉｓｗｉｄｅｌｙｕｓｅｄｉｎｂｉｏｌｏｇｉｃａｌｓｙｓｔｅｍｓｄｕｅｔｏｔｈｅｔｗｏｂａｓｉｃｆｏｒｍｓ :ｎｉｔｒｏｇｅｎａｓｅｓａｎｄｏｘｏｔｒａｎｓｆｅｒａｓｅｓｏｒｏｘｏｍｏｌｙｂｄｏｅｎｚｙｍｅｓ .Ｔｈｅｌａｔｔｅｒａｓｔｈｅｍｏｎｏｎｕｃｌｅａｒａｃｔｉｖｅｓｉｔｅｓｏｆａｍｕｃｈｍｏｒｅｄｉｖｅｒｓｅｇｒｏｕｐｏｆｅｎｚｙｍｅｓｉｎｇｅｎｅｒａｌｆｕｎｃｔｉｏｎｃａｔａｌｙｔｉｃａｌｌｙｔｒａｎｓｆｅｒａｎｏｘｙｇｅｎａｔｏｍｅｉｔｈｅｒｔ…     

Theoretical Study on the Kinetics of Electron Transfer for Bond—breaking Reaction

ＩｎｔｒｏｄｕｃｔｉｏｎＦｒｅｅｒａｄｉｃａｌｆｏｒｍａｔｉｏｎｆｒｏｍｈａｌｏｇｅｎａｔｅｄｈｙｄｒｏｃａｒｂｏｎｓｈａｓｒｅｃｅｉｖｅｄｃｏｎｓｉｄｅｒａｂｌｅａｔｔｅｎｔｉｏｎｂｅｃａｕｓｅｏｆｉｔｓｓｃｉｅｎｔｉｆ ｉｃａｎｄｅｎｖｉｒｏｎｍｅｎｔａｌｒｅｌｅｖａｎｃｅ .1 6 Ｔｈｉｓｒｅａｃｔｉｏｎｓｅｅｍｓｔｏｐｌａｙａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｖａｒｉｏｕｓｐｒｏｃｅｓｓｅｓ .Ｂｏｎｄ ｂｒｅａｋ ｉｎｇｒｅａｃｔｉｏｎｉｓａｐｏｗｅｒｆｕｌｓｙｎｔｈｅｔｉｃｔｏｏｌｔｏｐｒｏｖ…     

Derivatization Reaction of Carbohydrates with Urea as the Reagent and Fluorimetric Determination of Carbohydrates

ＩｎｔｒｏｄｕｃｔｉｏｎＣａｒｂｏｈｙｄｒａｔｅｓｐｌａｙａｎｅｓｓｅｎｔｉａｌｒｏｌｅｉｎｎａｔｕｒｅａｎｄａｌｍｏｓｔａｌｌｔｈｅｌｉｆｅｐｒｏｃｅｓｓｅｓ .Ｔｈｅｙａｒｅｎｏｔｏｎｌｙｃｅｎｔｒａｌｔｏｔｈｅｇｅｎｅｒａｔｉｏｎａｎｄｓｔｏｒａｇｅｏｆｅｎｅｒｇｙｂｕｔａｌｓｏｕｓｅｆｕｌｉｎｔｈｅｄｉａｇｎｏｓｉｓｏｆｄｉｓｅａｓｅｓａｎｄｄｙｎａｍｉｃａｄｊｕｓｔｍｅｎｔｆｏｒｔｈｅｆｕｎｃｔｉｏｎｓｏｆｐｒｏｔｅｉｎ .Ｓｏｅｓｔａｂｌｉｓｈｉｎｇｈｉｇｈｓｅｎｓｉｔｉｖｅａｎｄｅｆｆ…     

Preliminary Study on Destruction of Freon 12 by Inductively Coupled Plasma——Development of ICP Technology for Waste Destruction

ＰｒｅｌｉｍｉｎａｒｙＳｔｕｄｙｏｎＤｅｓｔｒｕｃｔｉｏｎｏｆＦｒｅｏｎ１２ｂｙＩｎｄｕｃｔｉｖｅｌｙＣｏｕｐｌｅｄＰｌａｓｍａ——ＤｅｖｅｌｏｐｍｅｎｔｏｆＩＣＰＴｅｃｈｎｏｌｏｇｙｆｏｒＷａｓｔｅＤｅｓｔｒｕｃｔｉｏｎＣＨＥＮＤｅｎｇ－ｙｕｎａｎ...     

Accurate Mass Determination of Amino Alcohols by Turboionspray／Time—of—Flight Mass Spectrometry

ＩｎｔｒｏｄｕｃｔｉｏｎＡｍｉｎｏａｌｃｏｈｏｌｓａｒｅａｎｉｍｐｏｒｔａｎｔｃｌａｓｓｏｆｃｏｍｐｏｕｎｄｓｉｎｓｙｎｔｈｅｔｉｃｏｒｇａｎｉｃｒｅａｃｔｉｏｎｓ .Ｔｈｅｉｒｍｏｌｅｃｕｌｅｓｔｒｕｃｔｕｒｅｓｂｅｃｏｍｅｕｎｓｔｅａｄｙｗｈｅｎａｎａｌｙｚｅｄｂｙｅｌｅｃｔｒｏｎｉｍｐａｃｔ(ＥＩ) .ＴｈｅｆｒａｇｍｅｎｔｓｏｂｔａｉｎｅｄｆｒｏｍＥＩａｒｅｕｓｕａｌｌｙａｓ ｓｉｇｎｅｄｔｏｎｅｕｔｒａｌｌｏｓｓｅｓｓｕｃｈａｓＨ2 Ｏ ,ＣＨ3 ＯＨ (Ｆｉｇ .1) .ＥＩｉｓｎｏｔａｕｓｅｆｕｌｍｅ…     

Synthesis, Structure and Noncovalent Interactions of Palladium(II) Complexes with N-Benzoyl-β-phenylalaninate Dianion and Aromatic Diimine

Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｎｏｎ ｃｏｖａｌｅｎｔｉｎｔｅｒａｃｔｉｏｎｓｈａｖｅａｂｉｇｉｎｆｌｕｅｎｃｅｏｎｔｈｅｃｏｎｆｏｒｍａｔｉｏｎａｌｏｒｇａｎｉｚａｔｉｏｎｏｆｔｈｅｂｉｏｍｏｌｅｃｕｌｅｓｗｈｉｃｈｉｓｒｅｓｐｏｎｓｉｂｌｅｆｏｒｔｈｅｒｅｇｉｏ ａｎｄｓｔｅｒｅｏ ｓｐｅｃｉｆｉｃｉｔｙｏｆｖａｒｉｏｕｓｂｉｏｌｏｇｉｃａｌｐｒｏｃｅｓｓｅｓ .1Ａｍｏｎｇｔｈｅｓｅｉｎｔｅｒａｃｔｉｏｎｓ ,ｔｈｅｉｎ ｔｒａｍｏｌｅｃｕｌａｒｓｔａｃｋｉｎｇｉｎｔｅｒａｃｔｉｏｎｂｅｔｗｅｅｎｓ…     

Synthesis and Crystal Structure of Two-dimensional Network Supramolecular Complex [Cu(dafo)_2(H_2O)_2](ClO_4)_2

ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｓｕｐｒａｍｏｌｅｃｕｌａｒｃｏｍｐｌｅｘｅｆｏｒｍｅｄｂｙｔｈｅｗｅａｋｉｎｔｅｒａｃｔｉｏｎｓ (ｅｌｅｃｔｒｏｓｔａｔｉｃｉｎｔｅｒａｃｔｉｏｎ ,ｈｙｄｒｏｇｅｎｂｏｎｄｓ ,ｖａｎｄｅｒＷａａｌｓｆｏｒｃｅ ,ｓｈｏｒｔ ｒａｎｇｅｅｘｃｌｕｓｉｏｎｆｏｒｃｅ ,ｅｔｃ .)ｏｆｍｏｒｅｔｈａｎｔｗｏｓｏｒｔｓｏｆｓｐｅｃｉｅｓｉｓａｎｏｒｇａｎｉｚｉｎｇｅｎｔｉｔｙｔｈａｔｕｓｕａｌｌｙｐｏｓｓｅｓｓｅｓｓｐｅｃｉａｌｓｔｒｕｃｔｕｒｅａｎｄｆｕｎｃｔｉｏｎ .1Ｓｕｐ…     

(8‐Dimethylamino‐1‐naphthyl)dimethylammonium 3‐carboxy‐1,4,5,‐6,7,7‐hexachlorobicyclo[2.2.1]hept‐5‐ene‐2‐carboxylate hydrate

The structure of the title compound, C₁₄H₁₉N₂⁺·C₉H₃Cl₆O₄^?·H₂O, consists of singly ionized 1,4,5,6,7,7‐hexachlorobicyclo[2.2.1]hept‐5‐ene‐2,3‐dicarboxylic acid anions and protonated 1,8‐bis(dimethylamino)naphthalene cations. In the (8‐dimethylamino‐1‐napthyl)dimethylammonium cat­ion, a strong disordered intramolecular hydrogen bond is formed with N?N = 2.589 (3) Å. The geometry and occupancy obtained in the final restrained refinement suggest that the disordered hydrogen bond may be asymmetric. Water mol­ecules link the anion dimers into infinite chains via hydrogen bonding.     

4‐Iodo­anilinium 3‐nitro­phthalate(1–): tripartite sheets built from O—H...O and N—H...O hydrogen bonds

In the title compound, 4‐iodoanilinium 2‐carboxy‐6‐nitrobenzoate, C₆H₇IN⁺·C₈H₄NO₆⁻, the anions are linked by an O—H...O hydrogen bond [H...O = 1.78 Å, O...O = 2.614 (3) Å and O—H...O = 171°] into C(7) chains, and these chains are linked by two two‐centre N—H...O hydrogen bonds [H...O = 1.86 and 1.92 Å, N...O = 2.700 (3) and 2.786 (3) Å, and N—H...O = 153 and 158°] and one three‐centre N—H...(O)₂ hydrogen bond [H...O = 2.02 and 2.41 Å, N...O = 2.896 (3) and 2.789 (3) Å, N—H...O = 162 and 105°, and O...H...O = 92°], thus forming sheets con­taining R(6), R(8), R(13) and R(18) rings.     

4‐Aminopyridinium 4‐aminobenzoate dihydrate and 4‐aminopyridinium nicotinate

In the title compounds, 4‐aminopyridinium 4‐aminobenzoate dihydrate, C₇H₆NO₂⁻·C₅H₇N₂⁺·2H₂O, (I), and 4‐aminopyridinium nicotinate, C₅H₇N₂⁺·C₆H₄NO₂⁻, (II), the aromatic N atoms of the 4‐aminopyridinium cations are protonated. In (I), the asymmetric unit is composed of two 4‐aminopyridinium cations, two 4‐aminobenzoate anions and four water molecules, and the compound crystallizes in a noncentrosymmetric space group. The two sets of independent molecules of (I) are related by a centre of symmetry which is not part of the space group. In (I), the protonated pyridinium ring H atoms are involved in bifurcated hydrogen bonding with carboxylate O atoms to form an R₁²(4) ring motif. The water molecules link the ions to form a two‐dimensional network along the (10) plane. In (II), an intramolecular bifurcated hydrogen bond generates an R₁²(4) ring motif and inter‐ion hydrogen bonding generates an R₄²(16) ring motif. The packing of adduct (II) is consolidated via N—H...O and N—H...N hydrogen bonds to form a two‐dimensional network along the (10) plane.     

Charge‐assisted hydrogen‐bonded supramolecular networks in acetoguanaminium hydrogen phthalate,acetoguanaminium hydrogen maleate and acetoguanaminium 3‐hydroxypicolinate monohydrate

In 2,4‐diamino‐6‐methyl‐1,3,5‐triazin‐1‐ium (acetoguanaminium) hydrogen phthalate, C₄H₈N₅⁺·C₈H₅O₄⁻, (I), acetoguanaminium hydrogen maleate, C₄H₈N₅⁺·C₄H₃O₄⁻, (II), and acetoguanaminium 3‐hydroxypicolinate monohydrate, C₄H₈N₅⁺·C₆H₄NO₃⁻·H₂O, (III), the acetoguanaminium cations interact with the carboxylate groups of the corresponding anions via a pair of nearly parallel N—H...O hydrogen bonds, forming R₂²(8) ring motifs. In (II) and (III), N—H...N base‐pairing is observed, while there is none in (I). In (II), a series of fused R₃²(8), R₂²(8) and R₃²(8) hydrogen‐bonded rings plus fused R₂²(8), R₆²(12) and R₂²(8) ring motifs occur alternately, aggregating into a supramolecular ladder‐like arrangement. In (III), R₂²(8) motifs occur on either side of a further ring formed by pairs of N—H...O hydrogen bonds, forming an array of three fused hydrogen‐bonded rings. In (I) and (II), the anions form a typical intramolecular O—H...O hydrogen bond with graph set S(7), whereas in (III) an intramolecular hydrogen bond with graph set S(6) is formed.     

Bis(dimethyl sulfoxide‐S)tetrakis(μ‐p‐hydroxybenzoato‐O:O′)dirhodium(II)–tetrakis(μ‐butyrato‐O:O′)bis(dimethyl sulfoxide‐S)dirhodium(II) cocrystal ethanol disolvate

The title structure, [Rh₂(C₇H₅O₃)₄(C₂H₆OS)₂]·[Rh₂(C₄H₇­O₂)₄(C₂H₆OS)₂]·2C₂H₆O, contains two discrete neutral Rh–Rh dimers cocrystallized as the ethanol disolvate. Each dimer is situated on an inversion center. The butyrate chain displays disorder in one C‐atom position. In each dimer, the di­methyl sulfoxide ligand (dmso) is bound via S, as expected. The ethanol is a hydrogen‐bond acceptor for one p‐hydroxy­benzoate hydroxyl group and acts as a hydrogen‐bond donor to the dmso O atom of a neighboring p‐hydroxy­benzoate dirhodium complex. A third hydrogen bond is formed from the other p‐hydroxy­benzoate hydroxyl group to the dmso O atom of a butyrate–dirhodium complex.     

N—H...O and O—H...O hydrogen‐bonded supramolecular networks in 4‐chloroanilinium, 2‐hydroxyanilinium and 3‐hydroxyanilinium hydrogen phthalates

The title salts, 4‐chloroanilinium hydrogen phthalate (PCAHP), C₆H₇ClN⁺·C₈H₅O₄⁻, 2‐hydroxyanilinium hydrogen phthalate (2HAHP), C₆H₈NO⁺·C₈H₅O₄⁻, and 3‐hydroxyanilinium hydrogen phthalate (3HAHP), C₆H₈NO⁺·C₈H₅O₄⁻, all crystallize in the space group P2₁/c. The asymmetric unit of 2HAHP contains two independent ion pairs. The hydrogen phthalate ions of 2HAHP and 3HAHP show a short intramolecular O—H...O hydrogen bond, with O...O distances ranging from 2.3832 (15) to 2.3860 (14) Å. N—H...O and O—H...O hydrogen bonds, together with short C—H...O contacts in PCAHP and 3HAHP, generate extended hydrogen‐bond networks. PCAHP forms a two‐dimensional supramolecular sheet extending in the (100) plane, whereas 2HAHP has a supramolecular chain running parallel to the [100] direction and 3HAHP has a two‐dimensional network extending parallel to the (001) plane.     

(S)‐5‐Benzylimidazolidine‐2,4‐dione monohydrate

The crystal structure of the title compound, C₁₀H₁₀N₂O₂·H₂O, also known as l ‐5‐benzylhydantoin monohydrate, is described in terms of two‐dimensional supramolecular arrays built up from infinite chains assembled via N—H...O and O—H...O hydrogen bonds among the organic molecules and solvent water molecules, with graph‐set R³₃(10)C(5)C²₂(6). The hydrogen‐bond network is reinforced by stacking of the layers through C—H...π interactions.     

Luminescent properties of three structures built from 3‐cyano‐4‐dicyanomethylene‐5‐oxo‐4,5‐dihydro‐1H‐pyrrol‐2‐olate and cadmium

Yellow–orange tetraaquabis(3‐cyano‐4‐dicyanomethylene‐5‐oxo‐4,5‐dihydro‐1H‐pyrrol‐2‐olato‐κN³)cadmium(II) dihydrate, [Cd(C₈HN₄O₂)₂(H₂O)₄]·2H₂O, (I), and yellow tetraaquabis(3‐cyano‐4‐dicyanomethylene‐5‐oxo‐4,5‐dihydro‐1H‐pyrrol‐2‐olato‐κN³)cadmium(II) 1,4‐dioxane solvate, [Cd(C₈HN₄O₂)₂(H₂O)₄]·C₄H₈O₂, (II), contain centrosymmetric mononuclear Cd²⁺ coordination complex molecules in different conformations. Dark‐red poly[[decaaquabis(μ₂‐3‐cyano‐4‐dicyanomethylene‐5‐oxo‐4,5‐dihydro‐1H‐pyrrol‐2‐olato‐κ²N:N′)bis(μ₂‐3‐cyano‐4‐dicyanomethylene‐1H‐pyrrole‐2,5‐diolato‐κ²N:N′)tricadmium] hemihydrate], [Cd₃(C₈HN₄O₂)₂(C₈N₄O₂)₂(H₂O)₁₀]·0.5H₂O, (III), has a polymeric two‐dimensional structure, the building block of which includes two cadmium cations (one of them located on an inversion centre), and both singly and doubly charged anions. The cathodoluminescence spectra of the crystals are different and cover the wavelength range from UV to red, with emission peaks at 377 and 620 nm for (III), and at 583 and 580 nm for (I) and (II), respectively.     

3‐Cyano‐6‐hydroxy‐4‐methyl‐2‐pyridone: two new pseudopolymorphs and two cocrystals with products of an in situ nucleophilic aromatic substitution

Four crystal structures of 3‐cyano‐6‐hydroxy‐4‐methyl‐2‐pyridone (CMP), viz. the dimethyl sulfoxide monosolvate, C₇H₆N₂O₂·C₂H₆OS, (1), the N,N‐dimethylacetamide monosolvate, C₇H₆N₂O₂·C₄H₉NO, (2), a cocrystal with 2‐amino‐4‐dimethylamino‐6‐methylpyrimidine (as the salt 2‐amino‐4‐dimethylamino‐6‐methylpyrimidin‐1‐ium 5‐cyano‐4‐methyl‐6‐oxo‐1,6‐dihydropyridin‐2‐olate), C₇H₁₃N₄⁺·C₇H₅N₂O₂⁻, (3), and a cocrystal with N,N‐dimethylacetamide and 4,6‐diamino‐2‐dimethylamino‐1,3,5‐triazine [as the solvated salt 2,6‐diamino‐4‐dimethylamino‐1,3,5‐triazin‐1‐ium 5‐cyano‐4‐methyl‐6‐oxo‐1,6‐dihydropyridin‐2‐olate–N,N‐dimethylacetamide (1/1)], C₅H₁₁N₆⁺·C₇H₅N₂O₂⁻·C₄H₉NO, (4), are reported. Solvates (1) and (2) both contain the hydroxy group in a para position with respect to the cyano group of CMP, acting as a hydrogen‐bond donor and leading to rather similar packing motifs. In cocrystals (3) and (4), hydrolysis of the solvent molecules occurs and an in situ nucleophilic aromatic substitution of a Cl atom with a dimethylamino group has taken place. Within all four structures, an R₂²(8) N—H...O hydrogen‐bonding pattern is observed, connecting the CMP molecules, but the pattern differs depending on which O atom participates in the motif, either the ortho or para O atom with respect to the cyano group. Solvents and coformers are attached to these arrangements via single‐point O—H...O interactions in (1) and (2) or by additional R₄⁴(16) hydrogen‐bonding patterns in (3) and (4). Since the in situ nucleophilic aromatic substitution of the coformers occurs, the possible Watson–Crick C–G base‐pair‐like arrangement is inhibited, yet the cyano group of the CMP molecules participates in hydrogen bonds with their coformers, influencing the crystal packing to form chains.     

Syntheses,Structures, and Luminescence of Metal(II) Coordination Polymers based on Flexible 1,1′‐(1,4‐Butanediyl)bis(imidazole) and Tetrachlorobenzene‐1,4‐dicarboxylate Ligands

The coordination polymers, {[Co(bbim)₂(H₂O)₂](tcbdc) · 2H₂O}_n ( 1 ), {[Ni(tcbdc)(bbim)(H₂O)₂] · 2DMF}_n ( 2 ), and {[Cu₂(tcbdc)₂(bbim)₄] · 4H₂O}_n ( 3 ) [bbim = 1,1′‐(1,4‐butanediyl)bis(imidazole) and tcbdc^2– = tetrachlorobenzene‐1,4‐dicarboxylate] were synthesized and characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, luminescence, and single‐crystal X‐ray diffraction analysis. Complex 1 has a double‐stranded chain structure through doubly bridged [Co(bbim)₂] units. Complex 2 exhibits two‐dimensional square grid, whereas complex 3 has a three‐dimensional porous network structure with an unprecedented 4⁴ · 6¹¹ topological structure through interpenetrating square grid. The water molecules in complex 3 occupy the vacancy through three kinds of hydrogen bond interactions. Upon excitation at 370 nm, complexes 1 – 3 present solid‐state luminescence at room temperature.