Crystal structure of di­aqua­tris­(benzohydrazide-κ²N,O)(isophthalato-κO)samarium(III) nitrate

The first benzohydrazide complex of a lanthanide is reported. The Sm^III ion is nine-coordinated in a distorted tricapped trigonal–prismatic geometry by three oxygen atoms and three nitro­gen atoms from three benzhydrazide (bzz) ligands, one oxygen atom from the isophthalate (itp²⁻) ligand, and two oxygen atoms from coordinated water mol­ecules. The crystal structure features extensive hydrogen bonding as well as C—H⋯π and π–π inter­actions.

Crystal structures of two 1,3-thia­zolidin-4-one derivatives featuring sulfide and sulfone functional groups

The closely related title compounds are comprised of three types of rings: thia­zolidinone, nitrophenyl and cyclo­hexyl. In both structures, the rings are close to mutually perpendicular, with inter­planar dihedral angles greater than 80° in each case.

Crystal structure and Hirshfeld surface analysis of (succinato-κO)[N,N,N′,N′-tetra­kis­(2-hy­droxy­eth­yl)ethyl­enedi­amine-κ⁵O,N,N′,O′,O′′]nickel(II) tetra­hydrate

One O atom of the succinate anion and three O atoms and two N atoms from a tetra­kis­(2-hy­droxy­eth­yl)ethyl­enedi­amine ligand coordinate to the Ni^II cation to form the complex which has a distorted octa­hedral geometry.

Chemo- and regioselective [3 + 2]-cyclo­additions of thio­carbonyl ylides: crystal structures of trans-8-benzoyl-1,1,3,3-tetra­methyl-7-tri­fluoro­methyl-5-thia­spiro­[3.4]octan-2-one and trans-3-benzoyl-2,2-di­phenyl-4-(tri­fluoro­meth­yl)tetra­hydro­thio­phene

The title compounds were prepared via chemo- and regioselective [3 + 2]-cyclo­additions. The thio­phene ring in each crystal structure has an envelope conformation. The largest differences between the two mol­ecular structures is in the bond lengths about the quaternary C atom of the thio­phene ring. In the spiro­cyclic structure, the C—C bonds to the spiro C atom in the cyclo­butane ring are around 1.60 Å and weak inter­molecular C—H⋯X (X = S, O) inter­actions link the mol­ecules into extended ribbons. In the other structure, weak C—H⋯π inter­actions link the mol­ecules into sheets.

Crystal structures and the Hirshfeld surface analysis of (E)-4-nitro-N′-(o-chloro, o- and p-methyl­benzyl­idene)benzene­sulfono­hydrazides

The crystal structures of three N′-(aryl­idene)4-nitro­benzene­sulfono­hydrazides, namely, (E)-4-nitro-N′-(2-chloro­benzyl­idene)benzene­sulfono­hydrazide (I), (E)-4-nitro-N′-(2-methyl­benzyl­idene) benzene­sulfono­hydrazide (II) and (E)-4-nitro-N′-(4-methyl­benzyl­idene)benzene­sulfono­hydrazide (III), have been studied to investigate the effect of the nature and site of substitutions on the structural parameters and the supra­molecular features in these compounds. Hirshfeld surface analysis was also carried out to examine the contributions of the various atom–atom inter­actions in the crystal packing of the three compounds.

Six tris­(bipyrid­yl)iron(II) complexes with 2-substituted 1,1,3,3-tetra­cyano­propenide, perchlorate and tetra­fluorido­borate anions; order versus disorder, hydrogen bonding and C—N⋯π inter­actions

The structures are reported of six racemic tris­(bipyrid­yl)iron salts with a range of 2-substituted-1,1,3,3-tetra­cyano­propenide anions, mostly also containing either perchlorate or tetra­fluorido­borate as co-anions. In three of the compounds the polynitrile anions are fully ordered, and in three others they are disordered, while the co-anion is also ordered in three compounds, but disordered in two others. Supra­molecular assemblies range from no continuous aggregation up to a three-dimensional hydrogen-bonded framework structure.

Crystal structures of two hydrogen-bonded compounds of chloranilic acid–ethyl­eneurea (1/1) and chloranilic acid–hydantoin (1/2)

The structures of the hydrogen-bonded 1:1 co-crystal of chloranilic acid with ethyl­eneurea and the 1:2 co-crystal of chloranilic acid with hydantoin have been determined at 180 K. In the crystals of both compounds, the base mol­ecules are in the lactam form and no acid–base inter­action involving H-atom transfer is observed. The acid and base mol­ecules are linked by short O—H⋯O and N—H⋯O hydrogen bonds.

Two polymorphs of 2-(prop-2-yn-1-yl­oxy)naphthalene-1,4-dione: solvent-dependent crystallization

The title compound crystallizes in monoclinic (space group P2₁/c) and triclinic (space group Pī) forms from N,N-di­methyl­formamide and isopropyl alcohol solutions, respectively. The planar structures of the mol­ecules in both crystals are essentially the same as each other, with maximum deviations of 0.0969 (11) and 0.209 (4) Å for the monoclinic and triclinic forms, respectively, from the mean planes of all non-H atoms.

Crystal structures of the 1:1 salts of 2-amino-4-nitro­benzoate with each of (2-hy­droxy­eth­yl)di­methyl­aza­nium, tert-but­yl(2-hy­droxy­eth­yl)aza­nium and 1,3-dihy­droxy-2-(hy­droxy­meth­yl)propan-2-aminium

Three ammonium salts of 2-amino-4-nitro­benzoate are described. Based on N—H⋯O and O—H⋯O hydrogen-bonding involving the different constituents, supra­molecular chains, tubes and double-layers are found in their crystals.

Two polymorphic forms of the oxathiin systemic fungicide active carboxine

Two polymorphic crystal forms of 6-methyl-N-phenyl-2,3-di­hydro-1,4-oxathiine-5-carboxamide) were isolated from a truncated, (12 solvent), polymorph screen on pure lyophillized material. Crystals of form 1 were obtained from all solvents included in the screen with the exception of methanol. As isolated from aceto­nitrile the crystals are triclinic, space group P with Z′ = 2. Crystals of form 2, which were isolated from methanol only are monoclinic, space group I2/a with Z′ = 1.

Crystal structure and Hirshfeld surface analysis of 1-{[2-oxo-3-(prop-1-en-2-yl)-2,3-di­hydro-1H-1,3-benzo­diazol-1-yl]meth­yl}-3-(prop-1-en-2-yl)-2,3-di­hydro-1H-1,3-benzo­diazol-2-one

In the title compound, the benzo­diazo­lone moieties are planar to within 0.017 (1) and 0.026 (1) Å, and oriented at a dihedral angle of 57.35 (3)°. In the crystal, two sets of inter­molecular C—H⋯O hydrogen bonds generate layers parallel to the bc plane.

Crystal structure of di-μ-hydroxido-bis­{aqua­[ethyl (1,10-phenanthrolin-3-yl)phospho­nato-κ²N,N′]copper(II)} hepta­hydrate

In the binuclear complex, [Cu₂(OH)₂(C₁₂H₇N₂(PO₃C₂H₅))₂(H₂O)₂]·7H₂O, the two Cu²⁺ cations each have a square-pyramidal geometry and are bridged by two hydroxide groups. The phenanthroline ligand in this complex acts as a counter-ion due to a negatively charged mono­ethyl­phosphoryl group. In the crystal, O—H⋯O hydrogen bonds link the cations, P(O)(O⁻)(OEt) group and water mol­ecules of crystallization into a three-dimensional supra­molecular architecture.

A new compound in the BEDT-TTF family [BEDT-TTF = bis­(ethyl­enedi­thio)­tetra­thia­fulvalene] with a tetra­thio­cyanato­cuprate(II) anion, (BEDT-TTF)₄[Cu(NCS)₄]

The new compound (BEDT-TTF)₄[Cu(NCS)₄] based on the organic donor BEDT-TTF [bis­(ethyl­enedi­thio)­tetra­thia­fulvalene] has been obtained during a galvanostatic electrocrystallization process with Cu(NCS). It exhibits a pseudo-κ arrangement, never observed up to now in the BEDT-TTF family with thio­cyanato­cuprate(II) anions.

Investigation of nitro–nitrito photoisomerization: crystal structures of trans-{2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolato}(pyridine/4-methyl­pyridine)­nitro­cobalt(III)

The crystal structures of the title compounds have been studied to clarify the characteristics of the NO₂⁻ ligand as a C—H⋯O hydrogen-bond acceptor, in relation to the solid-state photochemical linkage isomerization.

A 1:2 co-crystal of 2,2′-thiodi­benzoic acid and tri­phenyl­phosphane oxide: crystal structure, Hirshfeld surface analysis and computational study

The asymmetric unit of the title co-crystal comprises two twisted mol­ecules of 2,2′-thiodi­benzoic acid and four mol­ecules of tri­phenyl­phosphane oxide. The three-dimensional mol­ecular packing is stabilized by hy­droxy-O—H⋯O(oxide) hydrogen bonds and TPPO-C—H⋯O(oxide, carbon­yl) and TDBA-C—H⋯(oxide, carbon­yl) inter­actions.

Binary charge-transfer complexes using pyromellitic acid dianhydride featuring C—H⋯O hydrogen bonds

Four binary charge-transfer complexes were made using pyromellitic acid dianhydride (pmda), all of which show alternating donor and acceptor stacks, which have weak C—H⋯O hydrogen bonds connecting the donor and acceptor mol­ecules.

Packing polymorphism in the structure of trans-aqua­[N,N′-bis­(salicyl­idene)ethane-1,2-di­amine-κ⁴O,N,N′,O′]chlorido­manganese(III) monohydrate

The crystal structure of a second phase, which results from packing polymorphism, is described for a previously reported Mn^III complex.

Four 1-aryl-1H-pyrazole-3,4-di­carboxyl­ate derivatives: synthesis, mol­ecular conformation and hydrogen bonding

1-Phenyl-1H-pyrazole-3,4-di­carb­oxy­lic acid and 1-(4-meth­oxy­phen­yl)-1H-pyrazole-3,4-dicarbohydrazide form complex hydrogen-bonded framework structures each containing multiple hydrogen-bond types, but dimethyl 1-phenyl-1H-pyrazole-3,4-di­carboxyl­ate and dimethyl 1-(4-methyl­phen­yl)-1H-pyrazole-3,4-di­carboxyl­ate form simple cyclic dimers containing only C—H⋯O hydrogen bonds.

Crystal structure of bis­(μ₂-meth­anolato-κO:κO)hexa­methyl­bis­(μ₂-tri­phenyl­acetato-κO:κO′)bis­(μ₂-tri­phenyl­acetato-κ²O,O′:κO)dialuminiumdi­lanthanum toluene tetra­solvate

The complex [{La(Ph₃CCOO)₂(Me₃AlOMe)}₂] has an La₂(μ-OCO)₄ core, contains the carboxyl­ate ligands in μ₂-κ¹O:κ¹O′ bridging and μ₂-κ²O,O′:κ¹O semi-bridging coordination modes, and displays La—C inter­actions with the π-system of a phenyl ring.

Formation and structural characterization of a potassium amidino­guanidinate

In the polymeric potassium complex [{ⁱPrN= CHN(ⁱPr)N(NⁱPr)₂K}₂(μ-DME)]_n, the amidino­guanidinate ligand adopts an unusual mixed σ-/π-coordination mode.

Synthesis, mol­ecular structure and Hirshfeld surface analysis of (4-meth­oxy­phen­yl)[2-(methyl­sulfan­yl)thio­phen-3-yl]methanone

The title mol­ecule is substanti­ally twisted, with a dihedral angle of 43.70 (2)° between the 2-(methyl­sulfan­yl)thio­phene and 4-meth­oxy­phenyl rings. In the crystal, mol­ecules are linked through C—H⋯O inter­actions, forming a bifurcated layer stacking along the b-axis direction enclosing (10) ring motifs.

Hydrogen-bonding chain and dimer motifs in pyridinium and morpholinium hydrogen oxalate salts

Three compounds consisting of pyridinium or morpholinium hydrogen oxalates each display different hydrogen oxalate hydrogen-bonding motifs, resulting in chains for 4-(di­methyl­amino)­pyridinium hydrogen oxalate 0.22-hydrate, dimers for 4-tert-butyl­pyridinium hydrogen oxalate and chains for morpholinium hydrogen oxalate.

Crystal structure and Hirshfeld surface analysis of two (E)-N′-(para-substituted benzyl­idene) 4-chloro­benzene­sulfono­hydrazides

The crystal structures of (E)-4-chloro-N′-(4-chloro­benzyl­idene)benzene­sulfono­hydrazide and (E)-4-chloro-N′-(4-nitro­benzyl­idene)benzene­sulfono­hydrazide have been studied to investigate the effect of substituents on the structural parameters. The two-dimensional fingerprint plots of these two p-substituted compounds indicate that in the 4-chloro-substituted compound, the largest contribution to the Hirshfeld surface comes from the H⋯H contacts (26.6%), in contrast to the 34.8% contribution of the O⋯H/H⋯O contacts in the 4-nitro-substituted compound.

Crystal structure and Hirshfeld surface analysis of 1-[(1-butyl-1H-1,2,3-triazol-4-yl)meth­yl]-3-methyl­quinoxalin-2(1H)-one

The title compound is built up from a planar quinoxalinone ring system linked through a methyl­ene bridge to a 1,2,3-triazole ring, which is inclined by 67.09 (4)° to the quinoxalinone ring plane.

A one-dimensional iodido-bridged Pt^II/Pt^IV mixed-valence complex cation with a hydrogen sulfate counter-anion

Straight ⋯I—Pt^IV—I⋯Pt^II⋯ chains are observed in the mixed-valent title salt. Extensive hydrogen bonding involving the amino groups, hydrogen sulfate counter-anions and water mol­ecules of crystallization stabilizes the crystal packing.

Crystal structure and Hirshfeld surface analysis of (E)-N′-[4-(piperidin-1-yl)benzyl­idene]aryl­sulfono­hydrazides

New Schiff bases containing piperidine and aryl­sulfono­hydrazide moieties have been synthesized, characterized and their crystal structures determined to study the effect of substituents on the structural parameters. Their crystal structures are stabilized by N—H⋯O, C—H⋯O and O—H⋯O inter­actions. Two-dimensional fingerprint plots show that the largest contributions come from H⋯H inter­actions.

Crystal structure and Hirshfeld surface analysis of 5-methyl-1,2,4-triazolo[1,5-a]pyrimidine

The nine-membered ring system of the title compound is essentially planar. In the crystal, mol­ecules are linked via C—H_Trz⋯N_Trz and C—H_Pyrm⋯N_Trz (Trz = triazole and Pyrm = pyrimidine) hydrogen bonds together with weaker C—H_Pyrm⋯N_Pyrm hydrogen bonds to form layers parallel to (02). The layers are further connected by π–π-stacking inter­actions between the nine-membered ring system, forming oblique stacks along the a-axis direction.

(μ-Methylenedi­phosphonato-κ⁴O,O′:O′′,O′′′)bis­[(ethyl­ene­diamine-κ²N,N′)palladium(II)] tetra­hydrate

The binuclear title mol­ecule exhibits point group symmetry 2, with the Pd^II atom in a square-planar coordination environment defined by two N atoms from ethyl­enedi­amine and two O atoms from methyl­enedi­phospho­nate ligands.

Crystal structure and Hirshfeld surface analysis of 1-benzyl-3-(prop-2-yn-1-yl)-2,3-di­hydro-1H-1,3-benzo­diazol-2-one

In the title compound, the benzo­diazole unit is planar while the benzyl and propynyl substituents are rotated significantly out of this plane.

Crystal structure of 4-[(3-meth­oxy-2-oxidobenzyl­idene)azaniumyl]­benzoic acid methanol monosolvate

In the crystal, the Schiff base mol­ecule exists in the zwitterionic form and an intra­molecular N—H⋯O hydrogen bond stabilizes the mol­ecular structure.

2-{[2,8-Bis(tri­fluoro­meth­yl)quinolin-4-yl](hy­droxy)meth­yl}piperidin-1-ium tri­chloro­acetate: crystal structure and Hirshfeld surface analysis

The mefloquinium cation in the title salt is L-shaped as the piperidin-1-ium group is nearly orthogonal to the quinolinyl residue. Supra­molecular chains arise in the crystal as a result of charge-assisted O—H^⋯O and N—H⋯O hydrogen-bonding.

Crystal structure, DFT calculations and Hirshfeld surface analysis of 3-(4-methyl­phen­yl)-6-nitro-1H-indazole

The asymmetric unit of the title compound consist of two independent mol­ecules. In the crystal, N–H⋯O and C—H⋯O hydrogen bonds form zigzag chains along the b-axis direction. Additional C—H⋯O hydrogen bonds link the chains into layers parallel to (10). These are connected by slipped π-stacking and C—H⋯π(ring) inter­actions.

A new co-crystal dinuclear/trinuclear Zn^II–Zn^II/Zn^II–Sm^III–Zn^II complex with a salen-type Schiff base ligand

In the penta­nuclear title complex, [SmZn₂(C₂₂H₁₈N₂O₄)₂(NCS)₂(C₃H₇NO)₂][Zn₂(C₂₂H₁₈N₂O₄)(NCS)₃]·C₃H₇NO·0.32H₂O, a dinuclear unit and a trinuclear unit co-exist. In the crystal, the trinuclear cationic units and dinuclear anionic units are assembled into infinite layers.

Crystal structure and Hirshfeld surface analysis of 2,4,6,11-tetra­kis­(4-fluoro­phen­yl)-9-oxa-1,5-di­aza­tri­cyclo­[5.3.1.0^3.8]undeca­ne

The compound, prepared by the NaBH₄ reduction of 4,8,9,10-tetra­kis­(4-fluoro­phen­yl)-1,3-di­aza­adamantan-6-one in chloro­form and ethanol as solvent, crystallizes in the monoclinic space group P2₁/n with four mol­ecules in the unit cell.

Synthesis and crystal structures of 5,5′-(propane-2,2-di­yl)bis­(2-hy­droxy­benzaldehyde) and 5,5′-(propane-2,2-di­yl)bis­(2-hy­droxy­isophthalaldehyde)

The mol­ecule of (1) presents a >C(CH₃)₂ group that bridges two nearly planar salicyl­aldehyde groups, each comprising a planar phenyl ring bonded with a hydroxyl and an aldehyde group. Similarly, mol­ecule (2) presents the same bridging group, but it connects two nearly planar appendants, each comprising a phenyl ring bonded with a hydroxyl and two aldehyde groups. Compound (2) exhibits a strong visible luminescence when excited with ultraviolet radiation.

Crystal structure of the lead-containing organic–inorganic hybrid: (C₁₈H₂₆N₂)₃[Pb₄I₁₄(DMSO)₂]·2DMSO

The compound tris­(1,1′-dibutyl-4,4′-bi­pyridine-1,1′-diium) bis­(dimethyl sulfoxide)di-μ₃-iodido-tetra-μ₂-iodido-octa­iodido­tetra­lead(II) dimethyl sulfoxide tetra­solvate belongs a class of organic–inorganic hybrid materials with novel functionalities. In this compound, C—H⋯O and C—H⋯I hydrogen-bonding inter­actions, π–π inter­actions, other short contacts and Pb octa­hedral chains are present, extending the crystal structure into a three-dimensional supra­molecular network.

The enrichment ratio of atomic contacts in the crystal structure of isomeric, triply protonated, 4′-functionalized terpyridine cations with [ZnCl₄]²⁻ as counter-ion

We report herein the synthesis, crystallographic analysis and a study of the non-covalent inter­actions observed in the new 4′-substituted terpyridine-based derivative bis­[4′-(isoquinolin-2-ium-4-yl)-4,2′:6′,4′′-terpyridine-1,1′′-diium] tris-[tetra­chlorido­zincate(II)]. The compound is similar in its formulation to the recently reported 2,2′:6′,2′′ terpyridinium analogue, although rather different and much simpler in its structural features, mainly in the number and type of non-covalent inter­actions present, as well as in the supra­molecular structure they define.

Crystal structure and Hirshfeld surface analysis of (E)-2,4-di-tert-butyl-6-[(3-chloro-4-methyl­phenyl­imino)­meth­yl]phenol

The mol­ecule has mirror symmetry with the all non-H atoms, except tert-butyl groups, located on the mirror plane. An intra­molecular O—H⋯N hydrogen bond forms an S(6) ring motif. In the crystal, the mol­ecules are connected by C—H⋯π inter­actions

Crystal structures of two stilbazole derivatives: bis­{(E)-4-[4-(di­ethyl­amino)­styr­yl]-1-methyl­pyridin-1-ium} tetra­iodido­cadmium(II) and (E)-4-[4-(di­ethyl­amino)­styr­yl]-1-methyl­pyridin-1-ium 4-meth­oxy­benzene­sulfonate monohydrate

The title mol­ecular salts are stilbazole, or 4-styryl­pyridine, derivatives in which the cation has a methyl group attached to the pyridine ring N atom and a diethyl amine group attached to the benzene ring. In salt (I), the cadmium atom of the [CdI₄]²⁻ dianion is located on a twofold rotation axis and the compound crystallizes with one cation in the asymmetric unit. In salt(II), the anion consists of a 4-meth­oxy­benzene­sulfonate ion, and it crystallizes as a monohydrate.

Crystal structure of poly[bis­(μ-2-bromo­pyrazine)­tetra-μ₂-cyanido-dicopper(I)iron(II)]: a bimetallic metal-organic framework

In the title bimetallic metal–organic framework, {Fe(Brpz)₂[Cu(CN)₂]₂}_n, where Brpz is 2-bromo­pyrazine, the Fe^II cation is located on an inversion centre and has a slightly elongated octa­hedral FeN₆ coordination environment. The Cu^I center has a fourfold CuC₃N coordination environment with an almost perfect trigonal–pyramidal geometry. Copper(I) centers related by a twofold rotation axis are bridged by two carbon atoms from a pair of μ-CN groups, resulting in Cu₂(CN)₂ units that build up the coordination framework.

Tetra­kis(4-benzoyl­pyridine-κN)bis­(iso­thio­cyanato-κN)manganese(II)

In the crystal structure of the title compound, the Mn^II cations are octa­hedrally coordinated by two terminally N-bonded thio­cyanate anions and four 4-benzoyl­pyridine coligands into discrete complexes, which are further linked into chains by inter­molecular C—H⋯O hydrogen bonding.

Structures of the hydrate and dihydrate forms of the DNA-binding radioprotector methyl­pro­amine

The dihydrate and hydrate forms of the DNA-binding bis-benzimidazole radioprotector methyl­pro­amine are reported. These are the first single-crystal structures of bis-benzimidazoles related to Hoechst 33342 to be reported.

Investigation of nitro–nitrito photoisomerization: crystal structure of trans-chlorido­nitro­(1,4,8,11-tetra­aza­cyclo­tetra­decane-κ⁴N,N′,N′′,N′′′)cobalt(III) chloride

The crystal structure of the title compound has been studied to show that the macrocyclic cyclam ligand is very suitable as the co-ligand for the nitro–nitrito photo-isomerization of the Co^III complex.

Crystal structure and Hirshfeld surface analysis of two imidazo[1,2-a]pyridine derivatives: N-tert-butyl-2-(4-meth­oxy­phen­yl)-5-methyl­imidazo[1,2-a]pyridin-3-amine and N-tert-butyl-2-[4-(di­methyl­amino)­phen­yl]imidazo[1,2-a]pyridin-3-amine

In the title imidazo[1,2-a]pyridine derivatives, N-tert-butyl-2-(4-meth­oxy­phen­yl)-5-methyl­imidazo[1,2-a]pyridin-3-amine, (I), and N-tert-butyl-2-[4-(di­methyl­amino)­phen­yl]imidazo[1,2-a]pyridin-3-amine, (II), the 4-meth­oxy­phenyl ring in (I) and the 4-(di­methyl­amino)­phenyl ring in (II) are inclined to the mean planes of the respective imidazole rings by 26.69 (9) and 31.35 (10)°.

Crystal structures of 3-meth­oxy-4-{[5-(4-meth­oxy­phen­yl)-1,3,4-oxa­diazol-2-yl]meth­oxy}benzo­nitrile and N-(4-{[5-(4-chloro­phen­yl)-1,3,4-oxa­diazol-2-yl]meth­oxy}phen­yl)acetamide

The title heterocyclic 1,3,4-oxa­diazole derivatives differ from each other in the groups attached to the carbon atoms: a meth­oxy­phenyl ring and a benzo­nitrile group in (I) and a chloro­phenyl ring and an acetamide group in (II).

Crystal structure of a 1:1 salt of 4-amino­benzoic acid (vitamin B₁₀) with pyrazinoic acid

The paper reports the crystal structure of novel salt of 4-amino­benzoic acid (Vitamin B₁₀) with pyrazinoic acid.

Crystal structure and Hirshfeld surface analysis of (E)-N-[(2-eth­oxy­naphthalen-1-yl)methyl­idene]-5,6,7,8-tetra­hydro­naphthalen-1-amine. Corrigendum

Erratum to Acta Cryst. (2018), E74, 1513–1516.

Crystal structure and Hirshfeld surface analysis and of 2-ammoniumylmethyl-1H-benzimidazol-3-ium chloride monohydrate. Corrigendum

Erratum to Acta Cryst. (2018), E74, 1517–1520.