Recent Posts

Maider Parra awarded best talk at J2IFAM 2022

Maider Parra gave a talk at the XIII Conference of Young Researchers in Atomic and Molecular Physics (J2IFAM 2022) entitled “Challenging the limits of rotational spectroscopy: gas phase structural elucidation of multiconformational macrolactones”. For this talk has been awarded the prize for the best talk of J2IFAM 2022..

Otger Crehuet gave a talk at the J2IFAM 2022

Otger Crehuet gave a talk at the XIII Conference of Young Researchers in Atomic and Molecular Physics (J2IFAM 2022) entitled “Astrochemistry, search in the interstellar medium and laboratory detection of bioligically relevant molecules”.

Emilio J.Cocinero at 4th Glycobaque meeting in San Sebastian

Emilio J. Cocinero gave a talk in the 4th Glycobasque meeting entitled “Fluorination and deoxygenation as chemical tools to study the conformational preferences of
hexopyranoses: a journey from gas phase to solution”

Our group participate to the XVII Simposio de investigadores jovenes de la RSEQ

Maider Parra presented a poster entitled “Gas phase structural elucidation of multiconformational macrolactones by means of high-resolution rotational spectroscopy.

Otger Crehuet gave a talk entitled “Laboratory observation of 4-Oxobutanitrile structure for search in the interstellar medium”

In the picture below Maider Parra and Otger Crehuet with the collaborations presented

Emilio J. Cocinero trip to Pierre’s laboratory in Paris

Emilio J. Cocinero went to a visit at Institut des Sciences Moléculaires d’Orsay (ISMO) to the laboratoy managed by Pierre Çarçabal.

In the picture below Pierre Çarçabal (left) and Emilio Cocinero (right)

The paper about Erythrulose highlighted in “Campusa”!

“Campusa”, the Journal of the University of the Basque Country, has published a press release about the paper “Laboratory Observation of, Astrochemical Search for, and Structure of Elusive Erythrulose in the Interstellar Medium”.

Click here to read the publication.

 

 

 

Our last paper has been highlighted as cover in JPCL!

Our paper “Laboratory Observation of, Astrochemical Search for, and Structure of Elusive Erythrulose in the Interstellar Medium” has been  highlighted as cover in The Journal of Physical Chemistry Letters.

 

Our paper “Laboratory Observation of, Astrochemical Search for, and Structure of Elusive Erythrulose in the Interstellar Medium” accepted in The Journal of Physical Chemistry Letters

Rotational spectroscopy provides the most powerful means of identifying molecules of biological interest in the interstellar medium (ISM), but despite their importance, the detection of carbohydrates has remained rather elusive. Here, we present a comprehensive Fourier transform rotational spectroscopic study of elusive erythrulose, a sugar building block likely to be present in the ISM, employing a novel method of transferring the hygroscopic oily carbohydrate into the gas phase. The high sensitivity of the experiment allowed the rotational spectra of all monosubstituted isotopologue species of 13C-12C3H8O4 to be recorded, which, together with quantum chemical calculations, enabled us to determine their equilibrium geometries (reSE) with great precision. Searches employing the new experimental data for erythrulose have been undertaken in different ISM regions, so far including the cold areas Barnard 1, the pre-stellar core TMC-1, Sagittarius B2. Although no lines of erythrulose were found, this data will serve to enable future searches and possible detections in other ISM regions.

The paper has been accepted by The Journal of Physical Chemistry Letters.

Our paper “Center for Astrobiology: Toward the RNA-World in the Interstellar Medium—Detection of Urea and Search of 2-Amino-oxazole and Simple Sugars” accepted in Astrobiology

In the past decade, astrochemistry has witnessed an impressive increase in the number of detections of complex organic molecules. Some of these species are of prebiotic interest such as glycolaldehyde, the simplest sugar, or aminoacetonitrile, a possible precursor of glycine. Recently, we have reported the detection of two new nitrogen-bearing complex organics, glycolonitrile and Z-cyanomethanimine, known to be intermediate species in the formation process of ribonucleotides within theories of a primordial RNA-world for the origin of life. In this study, we present deep and high-sensitivity observations toward two of the most chemically rich sources in the galaxy: a giant molecular cloud in the center of the Milky Way (G + 0.693-0.027) and a proto-Sun (IRAS16293-2422 B). Our aim is to explore whether the key precursors considered to drive the primordial RNA-world chemistry are also found in space. Our high-sensitivity observations reveal that urea is present in G + 0.693-0.027 with an abundance of ∼5 · 10-11. This is the first detection of this prebiotic species outside a star-forming region. Urea remains undetected toward the proto-Sun IRAS16293-2422 B (upper limit to its abundance of ≤2×10-11. Other precursors of the RNA-world chemical scheme such as glycolaldehyde or cyanamide are abundant in space, but key prebiotic species such as 2-amino-oxazole, glyceraldehyde, or dihydroxyacetone are not detected in either source. Future more sensitive observations targeting the brightest transitions of these species will be needed to disentangle whether these large prebiotic organics are certainly present in space.


The paper has been accepted by Astrobiology.

Our paper “Conformational impact of the aliphatic side chain in local anaesthetics: benzocaine, butamben and isobutamben” accepted in Chemical Communications

We studied the impact of the aliphatic side chain in the stability and conformational landscape of the local anaesthetics benzocaine, butamben and isobutamben, combining high resolution rotational spectroscopy in the microwave and millimetre regions and quantum-mechanical calculations. The study reveals the connections between the alkyl chain flexibility and molecular conformations.

The paper has been accepted by Chemical Communications.