This study presents the synthesis, characterization and Hirshfeld surface analysis of a small organic ammonium salt, C2H7BrN+·Br−. Small cations like the one in the title compound are considered promising components of hybrid perovskites, crucial for optoelectronic and photovoltaic applications. While the incorporation of this organic cation into various hybrid perovskite structures has been explored, its halide salt counterpart remains largely uninvestigated. The obtained structural results are valuable for the synthesis and phase analysis of hybrid perovskites. The title compound crystallizes in the solvent-free form in the centrosymmetric monoclinic space group P21/c, featuring one organic cation and one bromide anion in its asymmetric unit, with a torsion angle of −64.8 (2)° between the ammonium group and the bromine substituent, positioned in a gauche conformation. The crystal packing is predominantly governed by Br⋯H inter­actions, which constitute 62.6% of the overall close atom contacts.

The isolation and crystalline structure of N,N'-di­benzyl­ethyl­enedi­ammonium dichloride, C16H22N22+·2Cl−, is reported. This was obtained as an unintended product of an attempted Curtius rearrangement that involved benzyl­amine as one of the reagents and 1,2-di­chloro­ethane as the solvent. Part of a series of reactions of a course-based undergraduate research experience (CURE), this was not the intended reaction outcome. The goal of the course was to engage students as active participants in a laboratory experience which applies the foundational techniques of a synthetic organic laboratory, using the Curtius rearrangement as a tool for the assembly of medicinally significant scaffolds. The isolation of the title compound, N,N'-di­benzyl­ethyl­enedi­ammonium dichloride, the result of the 1,2-di­chloro­ethane solvent outcompeting the Curtius iso­cyanate inter­mediate in the reaction with the nucleophilic amine, confirms the importance of conducting research at the undergraduate level where the outcome is not predetermined. The solid-state structure of N,N'-di­benzyl­ethyl­enedi­ammonium dichloride was found to feature an all-trans methyl­ene-ammonium backbone. Strong N—H⋯Cl hydrogen bonds and C—H⋯Cl inter­actions lead to a layered structure with pseudo-translational symmetry emulating a C-centered setting. Different phenyl torsion angles at each end of the mol­ecule enable a more stable packing by allowing stronger hydrogen-bonding inter­actions, leading to a more ordered but lower symmetry and modulated structure in P21/n.

Two new zinc(II) complexes, tri­ethyl­ammonium di­chlorido­[2-(4-nitro­phen­yl)-4-phenyl­quinolin-8-olato]zinc(II), (C6H16N){Zn(C21H13N2O3)Cl2] (ZnOQ), and bis­(tri­ethyl­ammonium) {2,2'-[1,4-phenyl­enebis(nitrilo­methyl­idyne)]diphenolato}bis­[di­chlorido­zinc(II)], (C6H16N)2[Zn2(C20H14N2O2)Cl4] (ZnBS), were synthesized and their structures were determined using ESI–MS spectrometry, 1H NMR spectroscopy, and single-crystal X-ray diffraction. The results showed that the ligands 2-(4-nitro­phen­yl)-4-phenyl­quinolin-8-ol (HOQ) and N,N'-bis­(2-hy­droxy­benzyl­idene)benzene-1,4-di­amine (H2BS) were deprotonated by tri­ethyl-amine, forming the counter-ion Et3NH+, which inter­acts via an N—H⋯O hydrogen bond with the ligand. The ZnII atoms have a distorted trigonal–pyramidal (ZnOQ) and distorted tetra­hedral (ZnBS) geometries with a coord­ination number of four, coordinating with the ligands via N and O atoms. The N atoms coordinating with ZnII correspond to the heterocyclic nitro­gen for the HOQ ligand, while for the H2BS ligand, it is the nitro­gen of the imine (CH=N). The crystal packing of ZnOQ is characterized by C—H⋯π inter­actions, while that of ZnBS by C—H⋯Cl inter­actions. The emission spectra showed that ZnBS complex exhibits green fluorescence in the solid state with a small band-gap energy, and the ZnOQ complex does exhibit non-fluorescence.

The title organic–inorganic hybrid salt, C2H7IN+·I−, is isotypic with its bromine analog, C2H7BrN+·Br− [Semenikhin et al. (2024). Acta Cryst. E80, 738–741]. Its asymmetric unit consists of one 2-iodo­ethyl­ammonium cation and one iodide anion. The NH3+ group of the organic cation forms weak hydrogen bonds with four neighboring iodide anions, leading to the formation of supra­molecular layers propagating parallel to the bc plane. Hirshfeld surface analysis reveals that the most important contribution to the crystal packing is from N—H⋯I inter­actions (63.8%). The crystal under investigation was twinned by a 180° rotation around [001].

Off-Ramp host John Rabe and Mayor Eric Garcetti playing backgammon in John’s car. Julian “The First Lady of Off-Ramp” Bermudez in the passenger seat with camera. ; Credit: Andrea Garcia

John Rabe’s last show coincides with Eric Garcetti’s inauguration for his second term as Mayor of Los Angeles. In John's car, the two talked about:

• The joys of exploring Los Angeles
• The time the future Mayor's mom and dad took his drivers' license away
• Where Justin Trudeau should visit when he comes to LA
• And how the drop in crime has led to more people doing the Off-Ramp thing

The Mayor also did some slam poetry, and then played a competitive game of backgammon. Listen with the audio player to see who was brown and who was white. And listen to Off-Ramp on the radio to find out who won the game! (Saturday at noon/Sunday at 6pm)

This content is from Southern California Public Radio. View the original story at SCPR.org.

MAMMOETH, the first fully servo-controlled dough divider is the result of the Blue Innovation Centre, an open innovation model in which WP Haton engineers develop machines together with customers and suppliers.

Mayyada Al Hammoshi, PhD, celebrates more than 20 years of experience in cybersecurity

The Board of Directors is pleased to announce Cruz as the new CEO beginning later this month.

Roger Mammon advocates for environmental preservation and restoration with Restore the Delta

EMS Company lands Start-Up Veteran to Support Massive Growth Endeavors

Steve L. Hammond is a distinguished expert in creative strategy development and strategic marketing at H2R Agency

Dylan J. Hammond is an expert in sales, operations, project planning and production at Frank America Inc.

The Mammoth Cost of Operating America’s Combat Aircraft shows the operating cost per aircraft in 2018. Statista created this infographic when the non-partisan U.S. Government Accountability Office (GAO) released an overview of mission capable rates and the cost of operating U.S. military aircraft in 2020. Over 40 aircrafts were examined, Statista chose to highlight these 15 in their infographic.

The non-partisan U.S. Government Accountability Office (GAO) recently released an overview of mission capable rates and the cost of operating U.S. military aircraft. It examined more than 40 different aircraft types, finding that only three of them reached their mission capable goals between fiscal years 2011 and 2019. In total, the report put the collective cost of operating all of the U.S. military's aircraft fleets at $49 billion in fiscal year 2018, taking operational & support (O&S) costs such as maintenance as well as supply support in account. O&S generally makes up 70 percent of a weapon system's total life cycle costs and it includes spare parts, depot and field maintenance, contract services, engineering support and personnel, amongst other factors.

It would be nice to see how many we have in service too. The stacked bars work well. As a reader you can tell the values between operating/support and maintenance, but the total is what matters.

Read more at Statista

Environmental proteomics as a useful methodology for early-stage detection of stress in anammox engineered systems  ScienceDirect.com

Ongoing and evolving U.S. Environmental Protection Agency (EPA) and Department of Energy (DOE) regulations have created a complex landscape for supermarket owners.

PATTANI - Local residents were evacuated and schools closed after an ammonia leak at an ice plant sickened 18 people in Muang district of this southern border province on Wednesday.

City Of Hammond Contacts And Details For Each City Departments Services City Council Meeting Agendas Job Openings And Community... David Lobue, Hammond, LA, United States

The 'de-extinction' company Colossal and the conservation group Re:wild found common ground in the potential of genetic technology to rescue today's disappearing creatures.

Susanna Wallumrød is a hell of a singer. Over the course of several albums with Morten Qvenild (as Susanna and the Magic Orchestra) and the previous solo release Sonata Mix Dwarf Cosmos, she's done up both original songs and covers with sparse accompaniment, letting her strong vocals lead the way. Flower Of Evil is the second "solo" release from Wallumrød and it again features the usual batch of Rune Grammofon players, including Helge Sten (Deathprod, Supersilent) and Pal Hausken (In The Country). Bonnie "Prince" Billy also appears on a couple songs as well.

Celebrated jazz Hammond organist Vel Lewis is set to release his highly anticipated new single, "I Paid The Price," a soulful and introspective piece showcasing his signature mastery of jazz, soul, and blues. The single will be available on all major streaming platforms on November 15, 2024. Lewis, known for his unmistakable touch on the Hammond organ, has crafted "I Paid The Price" to reflect his deep connection to life’s lessons, love, and the resilience that comes from overcoming challenges...

Rob Grabowski and Tom Antonson caught Metallica, Pantera and Mammoth WVH In The Act during the Chicago stop of the M72 Tour at Soldiers Field on August 9th. Check out Rob's photos and Tom's review!

Minister of Health Kim Wilson emphasized the importance of mammograms during Breast Cancer Awareness Month, urging women over 40 to prioritize regular screenings as a vital step in early detection and effective treatment of breast cancer. Minister Wilson said, “Every October, Breast Cancer Awareness Month highlights the critical need for early detection, support, and continuous […]

Police “attended a residence in Warwick and recovered what appears to be a firearm and ammunition” and “three persons have been arrested in connection with this matter.” A police spokesperson said, “Shortly before noon today, Friday, September 13, 2024, acting on information received, police attended a residence in Warwick and recovered what appears to be […]

Lord Hammond Joins Panel of Senior Advisers News Release NCapeling 10 December 2020

Chatham House is pleased to announce that Lord Hammond of Runnymede is joining our Panel of Senior Advisers.

As the world leaders converge in the UAE for the COP28 this week to chalk out strategies for climate mitigation, Adani Power announced it has taken up a green ammonia combustion pilot project at its Mundra plant.

Gun dealer under investigation for lax prevention of shoplifted ammo Attorney General Kathy Jennings, through her Office of Impact Litigation, has asked the Superior Court to enforce a subpoena against Cabela’s, Inc. (“Cabela’s”) seeking answers about a half-million rounds of ammunition that were shoplifted from its Christiana location.  After more than three months, Cabela’s has […]

Experiments with a replica suggest that a piece of mammoth ivory with carved holes found in a cave in Germany was used by ancient humans to make ropes

A southern mammoth skeleton found in Spain bears cut marks from stone tools and bite marks from carnivore teeth, suggesting that both hominins and felids feasted on its meat

Title: False-Positive Mammogram Result Traumatic for Most Women: Study
Category: Health News
Created: 8/26/2015 12:00:00 AM
Last Editorial Review: 8/26/2015 12:00:00 AM

Directed by debutant Jithin K Jose, the film is bankrolled by Mammootty’s home banner Mammootty Kampany

All eyes are on Michigan as Donald Trump and Kamala Harris battle over undecided voters in the crucial swing state, including many of the state’s 200,000 Arab American and Muslim voters who reject both the Republican and Democratic parties’ stance on Israel and Palestine. We speak to Dearborn, Michigan’s Lebanese American Mayor Abdullah Hammoud, who is the first Arab and Muslim mayor of the city, about many of his constituents’ loss of support for the Democratic Party and how the Arab American vote could impact the presidential election. Hammoud, like many Dearborn residents, has lost extended family to Israel’s attacks on Lebanon, and describes the climate in the city as “a blanket of grief.” Having called for a ceasefire and arms embargo on Israel, he refused to meet with Trump last week, but has also declined to endorse Harris. Hammoud calls on voters to not sit out the election entirely, but to “vote their moral conscience, and says the citizens of Dearborn are “willing to put people over party, first and foremost.”

While mammograms for early detection of medlinkbreast cancer/medlink save lives, false positives can cause medlinkanxiety/medlink and financial strain.

As colossal container ships traverse oceans delivering cargo, their massive diesel engines emit significant air pollutants that contribute to climate change and pose health risks.

London : Methuen Drama, 2022.

Cambridge, United Kingdom ; New York : Cambridge University Press, 2023.