Procrystalline Self-Assembly of Desymmetrized Pentaphenylcyclopentadiene.

The interplay between the molecular shape and the intermolecular interaction plays a decisive role in self-assembled structures. Recently, inherent randomness of low ordered assemblies, resulting from lack of short- and long-range periodicities, has attracted significant attention due to the unique structural, electronic, and mechanical properties. Here, we present procrystalline self-assemblies of pentaphenyl cyclopentadienyl derivatives on Ag(111) and Au(111) with scanning tunneling microscopy, operating at 4.

Lipid cubic phase with an organic-inorganic hybrid structure formed by organoalkoxysilane lipid.

A lipid cubic phase encompassing a cross-linked siloxane structure was formed by the self-assembly of a synthetic organoalkoxysilane lipid in water. The spontaneous sol-gel reaction of the alkoxysilane moiety on the lipid head group produced an organic-inorganic hybrid material with a double gyroid 3 cubic structure.

Airway obstruction caused by achalasia: A case report.

We report a rare case of airway obstruction caused by megaesophagus associated with achalasia. A 78-year-old man was admitted with post meal dyspnea, decreased consciousness, expiratory and inspiratory wheezing, and respiratory distress. Arterial blood gas analysis showed findings of marked acute respiratory acidosis (pH 7.

Extended Tripodal Hydrotris(indazol-1-yl)borate Ligands as Ruthenium-Supported Cogwheels for On-Surface Gearing Motions.

This paper reports the synthesis of ruthenium-based molecular gear prototypes composed of a brominated or non-brominated pentaphenylcyclopentadienyl ligand as an anchoring unit and a tripodal ligand with aryl-functionalized indazoles as a rotating cogwheel. Single crystal structures of the ruthenium complexes revealed that the appended aryl groups increase the apparent diameter of the cogwheel rendering them larger than the diameter of the anchoring units and consequently making them suitable for intermolecular gearing motions once the complexes will be adsorbed on a surface.

Thermally responsive morphological changes of layered coordination polymers induced by disordering/ordering of flexible alkyl chains.

The search for a method to control structural transformations of layered coordination polymers is highly desirable to modulate their properties and functions. Herein, we report the construction of a novel coordination polymer named ZnC16 with Zn(II) ions coordinated to isophthalate ligands bearing an -hexadecyloxy chain (C16). Its structure consists of a layer-by-layer structure of a rigid two-dimensional coordination network and an assembly of alkyl chains as a thermally responsive moiety.

Comparison of the effectiveness of pericardiocentesis and surgical pericardiotomy in the prognosis of patients with blunt traumatic cardiac tamponade: a multicenter study using the Japan Trauma Data Bank.

Aim: To compare the prognostic impact of pericardiocentesis (PCC) and surgical pericardiotomy (SP) in blunt traumatic pericardial tamponade.

Methods: Among 361,706 trauma patients registered in the Japan Trauma Data Bank from January 2004 to December 2018, we included those with blunt traumatic cardiac tamponade who underwent PCC and/or SP. We excluded patients with penetrating trauma, age younger than 15 years, Injury Severity Score (ISS) equal to 75, blood pressure 0 mmHg at the time of admission, head Abbreviated Injury Scale (AIS) score 5 or more, and those with missing data for outcomes.

[A Case of Brain Metastasis of Gastric Cancer Successfully Treated with Nivolumab].

A 68‒year‒old man was referred to our hospital due to vomiting and light‒headedness. The patient was diagnosed with advanced gastric cancer. Neoadjuvant chemotherapy(S‒1 plus oxaliplatin)was initiated resulting in a partial response(PR) after 5 courses.

Phase-Dependent Reactivity and Host-Guest Behaviors of a Metallo-Macrocycle in Liquid and Solid-State Photosensitized Oxygenation Reactions.

The photochemical oxygenation reactions of a host-guest complex, pCp⊂[Ag](SbF) (pCp = [2.2]paracyclophane) have been investigated in solution and in the solid state, using the macrocyclic ligand having four anthracene moieties in the framework. As a result, it was found that the reactivity and host-guest functions show remarkable phase dependence.

Comorbid rectus abdominis diastasis is a risk factor for recurrence of umbilical hernia in Japanese patients.

Introduction: Rectus abdominis diastasis (RAD) is characterized by thinning and widening of the linea alba and laxity of the ventral abdominal muscle. RAD, when coexistent with umbilical hernia, is considered a risk factor for hernia recurrence. We investigated the impact of comorbid RAD in patients with umbilical hernia who had undergone hernia repair.

Thermosalience in Macrocycle-Based Soft Crystals via Anisotropic Deformation of Disilanyl Architecture.

We describe here the preparation of soft crystals using disilanyl macrocycle possessing four -phenylenes circularly connected by four flexible disilane bonds. Single crystals of exhibited a reversible thermal single-crystal-to-single-crystal (SCSC) phase transition behavior between two crystal phases accompanied by remarkable mechanical motion (thermosalient effect), as revealed by thermal analyses and X-ray diffraction measurements. Detailed structural analyses implied that flexibility of the parallelogram disilanyl architecture and molecular packing mode via weak intermolecular interactions facilitated a concerted structural transformation (parallel crank motion) of macrocycles in the crystal, thus resulting in the SCSC phase transition accompanied by anisotropic shrinking/elongation of the cells to induce the thermosalient effect.

Observation of an exotic state of water in the hydrophilic nanospace of porous coordination polymers.

Fundamental understanding of the confinement of water in porous coordination polymers (PCPs) is important not only with respect to their application, such as in gas storage and separation, but also for exploring confinement effects in nanoscale spaces. Here, we report the observation of water in an exotic state in the well-designed hydrophilic nanopores of PCPs. Single-crystal X-ray diffraction finds that nanoconfined water has an ordered structure that is characteristic in ices, but infrared spectroscopy reveals a significant number of broken hydrogen bonds that is characteristic in liquids.

Molecular recognition of planar and non-planar aromatic hydrocarbons through multipoint Ag-π bonding in a dinuclear metallo-macrocycle.

Exploration of a novel structural motif of host-guest interactions is one of the most fundamental topics to develop macrocycle-based host-guest/supramolecular systems. Herein, we present an unprecedented mode of inclusion of aromatic hydrocarbons into a macrocyclic cavity multipoint Ag-π bonding as a driving force. A dinuclear Ag-macrocycle encapsulated one molecule of anthracene, a typical planar aromatic hydrocarbon, in solution and in the solid state.

Enhancement of the Photofunction of Phosphorescent Pt(II) Cyclometalated Complexes Driven by Substituents: Solid-State Luminescence and Circularly Polarized Luminescence.

Ligand functionalization is an attractive strategy for enhancing the performance of metal-based phosphorescent emitters. Here, we report the synthesis and characterization of cyclometalated Pt(II) complexes and containing organosilyl-substituted (2-(2-thienyl)pyridine) ligands and compare their properties with those of (no substituent) and (organocarbon substituent). The photophysical characteristics of these molecules, including their absorption and phosphorescence spectra, phosphorescence quantum yield and lifetime, were investigated.

Effects of Substituents on the Blue Luminescence of Disilane-Linked Donor‒Acceptor‒Donor Triads.

A series of disilane-linked donor‒acceptor‒donor triads (D‒Si‒Si‒A‒Si‒Si‒D) was synthesized to investigate the effects of substituents on the photophysical properties. The triads were prepared by metal-catalyzed diiodosilylation of aryl iodides using a Pd(P(-Bu)₃)₂/(-Pr)₂EtN/toluene system that we previously developed. Optical measurements, X-ray diffraction analysis, and density functional theory calculations revealed relationships between the photophysical properties and molecular structures of these triads in solution and in the solid state.

Paraffinic metal-organic polyhedrons: solution-processable porous modules exhibiting three-dimensional molecular order.

Metal-organic polyhedral cages substituted with paraffinic side chains were designed as solution-processable porous modules, which provide soft materials possessing self-organized cavity structures with three-dimensional molecular order in a lyotropic mesophase. The macroscopic shape of the resulting soft materials can be easily modified through solution-based processes.

Anisotropic convergence of dendritic macromolecules facilitated by a heteroleptic metal-organic polyhedron scaffold.

Anisotropic dendrimers with bipolar shapes were systematically obtained using a heteroleptic metal-organic polyhedron (MOP) as a robust core scaffold. The structure of one of these polyhedral shapes was unambiguously determined by single-crystal X-ray analysis, which revealed that the bulky dendrons converge to both axial positions of the heteroleptic MOP core.

Multifunctional Octamethyltetrasila[2.2]cyclophanes: Conformational Variations, Circularly Polarized Luminescence, and Organic Electroluminescence.

Both symmetrical and unsymmetrical cyclophanes containing disilane units, tetrasila[2.2]cyclophanes 1-9, were synthesized. The syn and anti conformations and the kinetics of inversion between two anti-isomers were investigated by X-ray diffraction and variable-temperature NMR analysis, respectively.

Anisotropic coordination star polymers realized by self-sorting core modulation.

End-functionalized polymeric ligands (macroligands) and azobenzene-3,3'-dicarboxylic acid with Cu self-sort into anisotropic coordination star polymers with polymeric chains on the arms, grafted from each polar position of the metal-organic polyhedral core.

Laparoscopic orchidopexy with transabdominal preperitoneal hernia repair in an adult.

We report an adult who underwent laparoscopic orchidopexy and transabdominal preperitoneal hernia repair. The patient was a 53-year-old man who was referred to our hospital for a bulge and pain in his left inguinal area. An abdominal CT scan revealed that the greater omentum was incarcerated in a left inguinal hernia.

Multipoint recognition of ditopic aromatic guest molecules via Ag-π interactions within a dimetal macrocycle.

A macrocyclic host molecule possessing a nanocavity with two Ag(I) centers for guest binding and four anthracene walls has been developed. This dimetal-macrocycle forms stable inclusion complexes with ditopic aromatic guest molecules, [2.2]paracyclophane, and ferrocene, in solution and/or in the solid state through Ag-π interactions within the nanocavity.

Immediate postoperative angiographic embolization after damage control surgery for liver injury: report of a case.

A multimodality strategy, including damage control and angioembolization techniques, has been reported to reduce the mortality associated with surgery for complex blunt hepatic injuries. However, the indications for angiographic evaluation and embolization in patients who require surgery for hepatic injury remain unclear. We report a case of blunt hepatic injury requiring emergency laparotomy, which we treated by damage control surgery because of an inaccessible major venous injury and the fact that coagulopathy was stopping hemostasis.