39 research outputs found
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril; X = Cl, Br)
No full textA discrete
dihalide–decahydrate cluster of [X<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>Â(H<sub>2</sub>O)<sub>6</sub>Â(H<sub>2</sub>OÂ@ÂTMEQÂ[6])]·2Â(C<sub>6</sub>H<sub>5</sub>ÂNO<sub>3</sub>)}ÂX<sub>2</sub>Â(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetraÂmethylÂcucurbit[6]Âuril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [XÂ(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions
A Doped Lanthanide-Based Coordination Polymer Exhibiting High Relative Sensitivity to Ratiometric Luminescent Thermometers at 440 K
No full textRatiometric
luminescent thermometers with excellent performance
often require the luminescent materials to possess high thermal stability
and relative sensitivity (Sr). However,
such luminescent materials are very rare, especially in physiological
(298–323 K) and high-temperature (>373 K) regions. Here
we
report the synthesis and luminescent property of [Tb0.995Eu0.005(pfbz)2(phen)Cl] (3), which
not only exhibits high Sr in physiological
temperature but also has a Sr up to 7.47%
K–1 at 440 K, the largest Sr at 440 K in known lanthanide-based coordination compound
luminescent materials
Heterometallic Lanthanide–Titanium Oxo Clusters: A New Family of Water Oxidation Catalysts
No full textWe
report the synthesis and photoelectrochemical activity of three lanthanide–titanium
oxo clusters (LTOCs), formulated as [Ln<sub>8</sub>Ti<sub>10</sub>(μ<sub>3</sub>-O)<sub>14</sub>(tbba)<sub>34</sub>(Ac)<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>(THF)<sub>2</sub>]·2Htbba [Ln =
Eu (<b>1</b>), Sm (<b>2</b>), and Gd (<b>3</b>);
Htbba = 4-<i>tert</i>-butylbenzoic acid; Ac<sup>–</sup> = acetate]. These stable compounds are efficient catalysts of photoelectrochemical
water oxidation with high turnover numbers (7581.0 for <b>1</b>, 5172.4 for <b>2</b>, and 5413.0 for <b>3</b>) and high
turnover frequencies (2527.0 for <b>1</b>, 1724.1 for <b>2</b>, and 1804.0 for <b>3</b>). The differences in the
photoelectrochemical activity among these three compounds may be related
to the differences in their band gaps. This work shows that the heterometallic
LTOCs provide a tunable platform for the design of highly effective
water oxidation catalysts
Photosensitizing Metal–Organic Framework Enabling Visible-Light-Driven Proton Reduction by a Wells–Dawson-Type Polyoxometalate
No full textA simple and effective charge-assisted
self-assembly process was
developed to encapsulate a noble-metal-free polyoxometalate (POM)
inside a porous and phosphorescent metal–organic framework
(MOF) built from [RuÂ(bpy)<sub>3</sub>]<sup>2+</sup>-derived dicarboxylate
ligands and Zr<sub>6</sub>(μ<sub>3</sub>-O)<sub>4</sub>(μ<sub>3</sub>-OH)<sub>4</sub> secondary building units. Hierarchical organization
of photosensitizing and catalytic proton reduction components in such
a POM@MOF assembly enables fast multielectron injection from the photoactive
framework to the encapsulated redox-active POMs upon photoexcitation,
leading to efficient visible-light-driven hydrogen production. Such
a modular and tunable synthetic strategy should be applicable to the
design of other multifunctional MOF materials with potential in many
applications
