Advancement in explosive systems toward miniaturization and enhanced safety has prompted the development of primary explosives with powerful detonation performance relatively low sensitivities. Energetic coordination polymers (ECPs) as a new type energetic materials have attracted wide attention. However, regulating characters ECPs establishing relationship between structure property remains great challenges. In this study, two isomorphic 2D π-stacked solvent-free polymers, [M(N3)2(atrz)]n...

Primary explosives with powerful and reliable stabilities have attractive applications in the field of military civilian technologies. In this work, four two-dimensional, solvent-free metal azide-based energetic coordination polymers [M(N3)2(btze)]n (M = Co for 1, Cd 2; btze 1,2-bis(tetrazol-1-yl)ethane), [Cd2(N3)3Cl(btze)2]n 3, [Cd2(N3)2Br2(btze)2]n 4 were prepared through a hydrothermal reaction structurally characterized by single-crystal X-ray diffraction. All compounds exhibit two times...

The unique type of molecular architectures with a remarkable initiation ability and enhanced stability is proposed. relationship between the structure sensitivity Cu(N 3 ) 2 -based primary explosive revealed.

Solid-state X-ray scintillators are widely applied in medical imaging and space exploration. However, it is still a great challenge to probe into the intrinsic nature of scintillating behaviour due ambiguous structure-function relationship. Herein, four structure-defined Pb(ii)-based metal-organic frameworks (SMOFs) were successfully obtained under solvothermal conditions, [Pb(1,4-ndc)(DMF)]n (SMOF-1), [Pb(1,4-ndc)(DMA)]n (SMOF-2), [Pb2(2,6-ndc)2(H2O)]n·nDMF (SMOF-3) [Pb4(2,6-ndc)3Cl2]n...

Nitrogen-rich high density metal–organic frameworks (MOFs) can be used as a new type of energetic materials. The MOFs provide method to reconcile contradiction between energy and reliable safety in Framework interpenetration would an effective approach reduce the pore volume meanwhile enhance structural/chemical stabilities target MOFs. In this work, mixed ligands 5-aminotetrazole (HATZ) tetrazole (HTZ) were chosen assemble with Zn(II) ions purpose prepare interpenetrated MOF materials...

In this work, we report a new mechanoresponsive luminescent Cd(ii) coordination polymer that exhibits sensitivity to mechanical stimulation. The luminescence colour changed gradually from weak yellowish-green bright cyan in response different grinding sizes, thereby showing interesting mechanochromic properties, namely grinding-enhanced and good crystalline maintenance ability.

Two new lead(II) coordination polymers, [Pb(NO3)(tzib)]n (1) and [Pb(tzib)2]n (2), were successfully synthesized from the reaction of a rigid ligand 1-tetrazole-4-imidazole-benzene (Htzib) nitrate in different solvents. The obtained polymers have been characterized by single-crystal X-ray diffraction analyses, which show that both feature 2D layer structures. inorganic anion 1 shows μ2-κO3:κO3 bridging mode to connect adjacent lead ions into zigzag chain, then organic ligands tzib(-) join...

Laser ignition of primary explosives presents more reliable alternative to traditional electrical initiation methods. However, the commercial initiator lead azide (LA) requires a high-power density laser detonate, with minimum energy (E

For designing energetic materials (EMs), the most challenging issue is to achieve a balance between performance and reliable stability. In this work, we employed an efficient convenient method synthesize new class of EMs: nitrogen-rich tetranuclear metal complexes [M(Hdtim)(H2O)2]4 (M = Zn 1, Mn 2; H3dtim 1H-imidazol-4,5-tetrazole) with N content >46%. The structural analyses illustrate that isomorphous compounds 1 2 feature isolated hollow ellipsoid units, which are linked by both π-π...

A tightly packed 3D energetic cadmium(<sc>ii</sc>) coordination polymer was synthesized with high stability and remarkable performance.

Efficient cathode-ray scintillating metal-organic frameworks are constructed from a π-conjugated luminescent motif and light Ca(ii) ions. The luminescence self-quenching pathway has been effectively hindered through coordination. In situ vacuum ultraviolet fluorescent spectra have shown the excitons recombining in scintillation process for first time.

Dicyanamide anions are introduced into nitrogen-rich skeletons to construct multipurpose ECPs with high energy, low sensitivities, and hypergolic properties.

Sensitive azide anions were embedded into EMOFs with high-energy densities and reliable sensitivities toward mechanical stimulation through the selection of a neutral nitrogen-rich ligand via an in situ hydrothermal reaction.

Two new coordination polymers {[Zn(L)(dma)] 2 · H O} n ( 1 ) and {[Cd(L)(H O) 3 ] dma {H L = 5‐[(pyren‐9‐ylmethyl)amino]isophthalic acid, N , ‐dimethylacetamide} were synthesized by the reaction of zinc(II) or cadmium(II) nitrate in mixed solvents. Single‐crystal XRD analyses show that have 1D chain structures. Due to existence π ··· stacking interactions crystal structure, exhibits mechanoresponsive luminescence, fluorescence color changes from weakly yellow noticeably greenish after...

A 3D MOF with magnetic diamond chains, well separated by diamagnetic [V₄O₁₂]⁴⁻ clusters and semi-rigid tetrazolate-bipyridinium ligand, exhibits WF SCM like behavior.

Crystalline nanowire arrays would create great opportunity for novel electrical application. Herein, we report a metal halide-based crystalline array, which was the first example constructed from two types of bromoplumbate anion chains. The single crystal shows high anisotropic conductivity with semiconducting transport along c axis and an insulating feature perpendicular to direction.

A low cost platform made of a silicon nitride window with pre-patterned metallic leads has been fabricated. The is compatible for both transmission electron microscopy (TEM) studies and electrical transport measurements. We demonstrated that TEM analyses, in situ local structure modification high intensity beam ex measurements can be performed the same individual nanowire assembled on this platform. therefore used to directly link properties testing nanomaterial or nanodevice its...

Rare tetranuclear Zn clusters were successfully embedded into energetic 3D metal–organic framework channels by an extended bifunctional tetrazolate–carboxylate hook ligand.

A solvothermal reaction of Co(CH3COO)2·4H2O and 5-mercapto-1-methyl-tetrazole (Hmmtz) in methanol (MeOH) yielded a one-dimensional solvent-free energetic coordination polymer, namely, [Co(mmtz)2] n1, which was structurally characterized. The enthalpy formation (ΔfH°) 1 (907 kJ mol-1) is much larger than that commercial 2,4,6-trinitrotoluene (-59 mol-1). impact sensitivity the friction are greater 40 J 360 N, respectively, indicating compound exhibits potential application as safe explosive....

High energy anions N(CN) 2 − were successfully introduced into two isostructural HMOFs by molecular design toward enhanced hypergolicity.