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Relevant bibliographies by topics / Group 13 elements

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Academic literature on the topic 'Group 13 elements'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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Journal articles on the topic "Group 13 elements"

1

Bhattacharjee, Hridaynath, and Jens Müller. "Metallocenophanes bridged by group 13 elements." Coordination Chemistry Reviews 314 (May 2016): 114–33. http://dx.doi.org/10.1016/j.ccr.2015.09.008.

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Okazaki, Renji. "Cyclic Chalcogenides Containing Group 13–15 Elements." Phosphorus, Sulfur, and Silicon and the Related Elements 168, no. 1 (January 1, 2001): 41–50. http://dx.doi.org/10.1080/10426500108546529.

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Müller, Jens. "Azides of the heavier Group 13 elements." Coordination Chemistry Reviews 235, no. 1-2 (December 2002): 105–19. http://dx.doi.org/10.1016/s0010-8545(02)00181-9.

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Singh, Sanjay, and Herbert W. Roesky. "Fluorine functionalized compounds of group 13 elements." Journal of Fluorine Chemistry 128, no. 4 (April 2007): 369–77. http://dx.doi.org/10.1016/j.jfluchem.2006.07.018.

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Varns, Rebecca, and Paul Strange. "Super-atom properties of 13 atom clusters of group 13 elements." physica status solidi (b) 249, no. 11 (August 22, 2012): 2179–89. http://dx.doi.org/10.1002/pssb.201248199.

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Ota, Kei, and Rei Kinjo. "Zero-valent species of group 13–15 elements." Chem 8, no. 2 (February 2022): 340–50. http://dx.doi.org/10.1016/j.chempr.2022.01.010.

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Stanciu, Corneliu, Anne F. Richards, Matthias Stender, Marilyn M. Olmstead, and Philip P. Power. "New terphenylphenoxides of group 13 and 14 elements." Polyhedron 25, no. 2 (January 2006): 477–83. http://dx.doi.org/10.1016/j.poly.2005.07.025.

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Hoefelmeyer, James D., Marcus Schulte, Martin Tschinkl, and François P. Gabbaı̈. "Naphthalene derivatives peri-substituted by Group 13 elements." Coordination Chemistry Reviews 235, no. 1-2 (December 2002): 93–103. http://dx.doi.org/10.1016/s0010-8545(02)00180-7.

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Blais, P., J. K. Brask, T. Chivers, C. Fedorchuk, and G. Schatte. "ChemInform Abstract: Polyimido Anions of Group 13 Elements." ChemInform 33, no. 52 (May 18, 2010): no. http://dx.doi.org/10.1002/chin.200252261.

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Cowley, Alan H., François P. Gabbaï, Andreas Decken, and Rodney D. Schluter. "Novel Heterocyclic Ring Systems Containing Heavier Group 13 Elements." Phosphorus, Sulfur, and Silicon and the Related Elements 93, no. 1-4 (August 1994): 153–58. http://dx.doi.org/10.1080/10426509408021807.

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Dissertations / Theses on the topic "Group 13 elements"

1

Scouter, Philip F. "Molecular compounds of the heavier Group 13 elements." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308610.

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Lawson, Yvonne Gayle. "Synthetic and structural studies involving group 13, 15 and 17 elements." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263828.

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Gorden, John David. "Low valent and mixed valent cyclopentadienyl complexes of the group 13 elements." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3036602.

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Coombs, Natalie D. "Synthesis of low-coordinate transition metal complexes of the heavier group 13 elements." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54759/.

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This thesis describes the synthesis, structural and reaction chemistry of a number of novel gallium and indium containing species, including metal complexes featuring previously unreported gallium and indium ligand systems. The synthesis, spectroscopic and structural characterisation of the asymmetric haloindyl (n5-C5R5)Fe(CO)2In(Mes*)Br (R = H, Me) and halogallyl Cp*Fe(CO)2Ga(Mes)I complexes are reported herein, with Cp*Fe(CO)2ln(Mes*)Br representing the first example of structurally characterised asymmetric bromoindyl complex. Cp*Fe(CO)2In(Mes*)Br is a versatile substrate for the synthesis of asymmetric indyl complexes via substitution chemistry, thereby allowing the synthesis and characterisation of Cp*Fe(CO)2In(Mes*)ERn (ERn = OC6H4/Bu-4, SPh). The synthesis, spectroscopic and structural characterisation of the dihalogallyl complex Cp*Fe(dppe)Gal2 is also reported this synthesis was accomplished via photolytic displacement of the carbonyl ligands in Cp*Fe(CO)2Gal2 2 by dppe 1,2-bis(diphenylphosphino)ethane. Cp*Fe(dppe)Gal2 has proven to be versatile reagent in the generation of the asymmetric halogallyl species via substitution chemistry with retention of the iron-gallium bond, thereby allowing the synthesis and characterisation of Cp*Fe(dppe)Ga(Mes)I. The diiodogallyl complex has also been implicated in the synthesis of the first structurally characterised base-free cationic gallylene complex Cp*Fe(CO)2Gal + BAr/4 bearing a terminally bound Gal ligand which is valence isoelectronic with CO and N2. Investigations into the synthesis of molybdenum- and ruthenium-phosphine containing systems are also reported herein. Insertion of 'Gal' into metal-halogen bonds has proved to a viable synthetic route, for example in the 7 7 formation of (n-C7H7)Mo(CO)2Gal2 2. Further reaction of (n-C7H7)Mo(CO)2Gal2 2 with dppe, however, has been shown to yield (r - C7H7)Mo(CO)2Gai2 2(u-dppe). Investigation of 'Gal' insertion reactions involving ruthenium-halogen bonds have shown to yield the tetraiodogallate species CpRu(PPh3)2(u-I)Gal3 and CpRu(dppe) Gal4. The synthesis, spectroscopic and structural characterisation of the bridging halo-indanediyl complexes Cp*Fe(CO)2 2lnX (X = Br, I) are reported. The bromo-substituted species has proven to be a useful precursor in the synthesis of the cationic trimetallic system {Cp*Fe(CO)2}2(-In) + BA/4, the formation of which has been shown to be strongly dependant on the nature of abstracting agent and on the identity of the halide. Reactivity studies of {Cp*Fe(CO)2}2( i-E) + (E = Ga, In) involving the addition of nucleophiles has allowed the synthesis and characterisation of the three-coordinate cationic complexes {Cp*Fe(CO)2}2(u-E L) + BAr4 (E = Ga, In L = thf, 4-picoline, PPh3). The syntheses and metallation of sterically bulky carbazol-9-yl ligands derived from 1,8-diaryl-3,6-dimethylcarbazole are described herein. Furthermore, the synthesis and structural characterisation of the amidogally l complexes (1,8-diphenyl-3,6-dimethylcarbazol-9-yl)gallium dichloride and (1,8-dimesity 1-3,6-dimethylcarbazol-9-yl)gallium dichloride are reported by salt metathesis reactions involving gallium trichloride. Investigations of subsequent reduction chemistry using potassium metal yielded the potassium salt 1,8-diphenyl-3,6-dimethylcarbazol-9-yl-potassium. Quantum chemical investigations using Density Functional Theory have been explored to probe the electronic structure in the novel bond types. In particular, studies targeted factors affecting the degree of 7c back-bonding (and hence multiple bond character) within the TM-ER bond.

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Chen, Xiaohui. "Optical stimulation of quantal exocytosis on transparent microchips." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4890.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on January 30, 2008) Vita. Includes bibliographical references.

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Yanagisawa, Tatsuya. "Studies on Single-bond Compounds between Heavier Group 13/15 Elements toward Small Molecule Activation." Kyoto University, 2020. http://hdl.handle.net/2433/253112.

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Bani, Fwaz Mutasem Z. "Ungewöhnliche Phosphaoligocyclen aus 1lamda 3 -Phosphaalkinen und verschiedenen Halogeniden der Gruppen 13 und 15 Unusual phosphorus oligocycles from 1lamda 3 -phosphaalkynes and various halides of group 13 and 15 elements /." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-36271.

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Hardman, Ned J. "The use of sterically encumbered terphenyl and [beta]-diketiminate ligands to synthesize low coordinate, multiply bonded, and hydride derivatives of heavier group 13 and 15 elements /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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Bani, Fwaz Mutasem Z. [Verfasser]. "Ungewöhnliche Phosphaoligocyclen aus 1λ3-Phosphaalkinen [1-lamda-3-Phosphaalkinen] und verschiedenen Halogeniden der Gruppen 13 und 15 = Unusual phosphorus oligocycles from 1λ3-phosphaalkynes and various halides of group 13 and 15 elements / Mutasem Z. Bani Fwaz." Beuren, 2007. http://d-nb.info/997231513/34.

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Pickett, Nigel Leroy. "Synthetic and structural aspects of Group 13 and 15 element chemistry." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238813.

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Books on the topic "Group 13 elements"

1

W, Roesky H., and Atwood David A. 1965-, eds. Group 13 chemistry. Berlin: Springer, 2002.

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Hasan, Heather. Aluminum. New York, NY: Rosen Pub. Group, 2007.

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The chemistry of the group 13 metals Aluminium, Gallium, Indium, and Thallium: Chemical patterns and peculiarities. Hoboken, N.J: Wiley, 2011.

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Hasan, Heather. The boron elements: Boron, aluminum, gallium, indium, thallium. New York: Rosen Pub., 2010.

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The boron elements: Boron, aluminum, gallium, indium, thallium. New York: Rosen Pub., 2010.

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1948-, Shapiro Pamela J., Atwood David A. 1965-, American Chemical Society. Division of Inorganic Chemistry, American Chemical Society Meeting, and Pacifichem 2000 (2000 : Honolulu, Hawaii), eds. Group 13 chemistry: From fundamentals to applications. Washington, DC: American Chemical Society, 2002.

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(Editor), Pamela J. Shapiro, and David A. Atwood (Editor), eds. Group 13 Chemistry: From Fundamentals to Applications (Acs Symposium Series). An American Chemical Society Publication, 2002.

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Saunders, Nigel. Aluminum And The Elements Of Group 13 (The Periodic Table). Heinemann, 2004.

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Saunders, Nigel. Aluminum and the Elements of Group 13 (The Periodic Table). Heinemann, 2004.

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Group 13 chemistry III: Industrial applications. Berlin: Springer, 2003.

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Book chapters on the topic "Group 13 elements"

1

Atwood, David A., Aaron R. Hutchison, and Yuzhong Zhang. "Compounds Containing Five-Coordinate Group 13 Elements." In Group 13 Chemistry III, 167–201. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-46110-8_5.

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Power, Philip P. "Multiple Bonding Between Heavier Group 13 Elements." In Group 13 Chemistry I, 57–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-47808-6_2.

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Blais, P., J. K. Brask, T. Chivers, C. Fedorchuk, and G. Schatte. "Polyimido Anions of Group 13 Elements." In ACS Symposium Series, 195–207. Washington, DC: American Chemical Society, 2002. http://dx.doi.org/10.1021/bk-2002-0822.ch014.

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Ren, Yi, and Frieder Jäkle. "Incorporation of Group 13 Elements into Polymers." In Main Group Strategies towards Functional Hybrid Materials, 79–110. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119235941.ch4.

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Linti, Gerold, Hansgeorg Schnöckel, Werner Uhl, and Nils Wiberg. "Clusters of the Heavier Group 13 Elements." In Molecular Clusters of the Main Group Elements, 126–68. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602445.ch2c.

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Höpfl, Herbert. "Structure and Bonding in Boron-Containing Macrocycles and Cages — Comparison to Related Structures with Other Elements Including Organic Molecules." In Group 13 Chemistry I, 1–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-47808-6_1.

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Schulz, Stephan. "Synthesis, Structure and Reactivity of Group 13/15 Compounds Containing the Heavier Elements of Group 15, Sb and Bi." In Group 13 Chemistry I, 117–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-47808-6_4.

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Mehring, Michael. "Metal Oxido Clusters of Group 13–15 Elements." In Clusters – Contemporary Insight in Structure and Bonding, 201–68. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/430_2016_4.

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Schebaum, L. O., and P. Jutzi. "Pentamethylcyclopentadienyl Complexes of the Monovalent Group 13 Elements." In ACS Symposium Series, 16–30. Washington, DC: American Chemical Society, 2002. http://dx.doi.org/10.1021/bk-2002-0822.ch002.

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Foster, Douglas F., David J. Cole-Hamilton, and Richard A. Jones. "Electronic Grade Alkyls of Group 12 and 13 Elements." In Inorganic Syntheses, 29–66. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132623.ch7.

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Conference papers on the topic "Group 13 elements"

1

Bischof, Lukas, Dmitry Sergeev, Paolo Sossi, Max W. Schmidt, and Michael Müller. "Vaporisation of group 13 elements from basaltic melts by Knudsen Effusion Mass Spectrometry." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.7353.

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Bashura, A. N., I. V. Koktysh, and V. T. Koktysh. "MICROELEMENTOSIS IN OSTEOARTHRITIS UNDER CONDITIONS OF HIGH ANTHROPOGENIC LOAD." In SAKHAROV READINGS 2021: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2021. http://dx.doi.org/10.46646/sakh-2021-2-13-16.

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The content of trace elements (manganese (Mn), iron (Fe), chromium (Cr), molybdenum (Mo), zinc (Zn), copper (Cu) in peripheral blood, and synovial fluid in 26 patients with osteoarthritis was studied. A decrease in the concentration of Mn (p = 0,02) and Fe (p = 0,02) and a decrease in Zn (p = 0,01) in the peripheral blood and an increase in the concentration of Fe (p = 0,01) and Zn (p = 0,02) in the synovial fluid in patients with osteoarthritis when compared with the control group. A statistically significant increase in the concentration of Mn (p = 0,001), Cr (p = 0,01), Zn (p = 0,002) and Fe (р<0,05) in the peripheral blood and a decrease in the concentration of Fe (p = 0,001) and Mn (p = 0,001) in synovial fluid in patients with gonarthrosis compared with patients with coxarthrosis Analysis of the trace element composition of synovial fluid and peripheral blood can be used in the complex diagnosis of patients with osteoarthritis.

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B M Zin, Zulkifli, Jennyfer Joseph Kuanji, and Nik Zarina Bt Nik Khansani. "Holistic Sand Management in Malaysia Assets; Successful Case Studies and Lessons Learnt." In Offshore Technology Conference Asia. OTC, 2022. http://dx.doi.org/10.4043/31370-ms.

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Abstract Sand production is a common issue, especially in a depleting field as water production commences, and sand strength weakens. Conventional sand management focuses on downhole sand exclusion from the wellbore either through completion design or production reduction by choke optimisation as passive sand control. The objective of the paper is to share the company's journey in sand management in collaboration of various supporting units. The Holistic Sand Management methodological process adopts a 5 keys action plan, namely: Establishment of dedicated focus sand team with multidisciplinary support covering surface and subsurface activities Situational Assessment to develop baseline in sand management preparedness in each field, identifying gaps and developing an intervention plan Development and utilisation of an in-house erosion prediction tool, Continuous upskilling in sand management best practices, and Technology review and active pilot testing utilising digital enhancement to assist in sand management activities. Establishment of a dedicated and collaborative focus group, Integrated Sand Management (ISM) team in the centre which is replicated at the region as Regional Sand Team (RST), has allowed for continuous communication on sand management matters. Situational Assessment consists of 13 integrated subsurface and surface elements to evaluate a field capability to manage sand production. These 13 elements include sand management philosophy and organisation setup, sand prediction, sand control design, sand sampling and monitoring as well as surface sand handling and disposal. Findings from the assessment are used to gauge the field's readiness and ability to manage sand operation and develop gaps closure plan to achieve the optimum holistic sand management. The Sand Erosional and Transportation (SET) tool, an in-house developed tool, is used to evaluate sand erosion and deposition risk in the production system. The tool is used extensively to generate a safe operating envelope for sand producing well during open-up and continuous production. This has allowed the company to shift from limiting production up to a specific sand concentration to erosion risk-based approach, which in turn creates production optimization opportunities. Regular and continuous upskilling sessions ensure the frontline operations are updated and abreast with best practices in sand management. In addition, the ISM team reviews and leverages on latest technology, actively organises pilot test at a selected site supported with digital enhancement to assist in sand management activities. The application of a Holistic Sand Management methodology is seen to reduce erosion related Loss of Primary Containment (LOPC), sustain production, and minimise unplanned deferment. However, this is just the beginning and the battle in sand operation will continue to be very challenging in balancing between production while ensuring asset integrity. The methodology is a novel approach for the company with the formation of a dedicated and collaborative team spearheading sand management initiatives which include situation assessment for gaps identification supported by in-house erosion modelling tool.

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Scarth, Doug. "Supplementary Technical Basis for ASME Section XI Code Case N-597." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71235.

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Efforts to develop clear and conservative methods to measure and evaluate wall thinning in nuclear piping have been underway since the late 1980’s. The Electric Power Research Institute (EPRI) carried out a successful campaign to address programmatic issues, such as locating and predicting flow-accelerated corrosion (FAC) degradation. This included developing a computer code (CHECWORKS), a users group (CHUG), and a comprehensive program guideline document for the effective prediction, identification and trending of flow-accelerated corrosion degradation. U.S. Nuclear Regulatory Commission (NRC) guidelines are provided in the NRC Inspection Manual Inspection Procedure 49001. At the same time, committees under Section XI of the ASME Boiler and Pressure Vessel Code have addressed evaluation of structural integrity of piping subjected to wall thinning. Code Case N-480 of Section XI provided acceptance criteria that focused on primary piping stresses, with evaluation based on a uniform wall thinning assumption for evaluating the minimum wall thickness of the piping. However, when applying this methodology to low pressure piping systems, Code Case N-480 was very conservative. Code Case N-597 was first published in 1998, and supercedes Code Case N-480. The current version is N-597-2. Code Case N-597-2 provides acceptance criteria and evaluation procedures for piping items, including fittings, subjected to a wall thinning mechanism, such as flow-accelerated corrosion. Code Case N-597-2 is a significant improvement over N-480, containing distinct elements to be satisfied in allowing the licensee to operate with piping degraded by wall thinning. The Code Case considers separately wall thickness requirements and piping stresses, and maintains original design intent margins. The Code Case does not provide requirements for locations of inspection, inspection frequency or method of prediction of rate of wall thinning. As described in the original technical basis document published at the 1999 ASME PVP Conference, the piping stress evaluation follows very closely the Construction Codes for piping. Five conditions related to industry use of Code Case N-597-1 have been published by the NRC in Regulatory Guide 1.147, Revision 13. A number of these issues are related to a need for additional explanation of the technical basis for the Code Case, such as the procedures for evaluation of wall thickness less than the ASME Code Design Pressure-based minimum allowable wall thickness. This presentation addresses these NRC conditions by providing additional description of the technical basis for the Code Case.

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Sonmez, Maria, Mircea Juganaru, Anton Ficai, Denisa Ficai, Ovidiu Oprea, Dana Gurau, Laurentia Alexandrescu, et al. "Dolomite surface modification with titanium and silicon precursors and its morphostructural and thermal characterisation." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.i.13.

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The aim of the paper is to modify the surface of dolomite with titania (TiO2) and silica (SiO2) precursors, in order to use it as a potential reinforcement material in a polymeric matrix or for environmental applications (photocatalyst for the degradation of organic pollutants based on TiO2). The dolomite surface modification was performed by 2 methods. The first method consisted in modifying the direct dolomite surface with SiO2 and TiO2. The second method consisted in the initial treatment of dolomite with TEOS, in order to form silanol bonds, followed by the addition of SiO2 and TiO2 precursors. The obtained powders were characterized by FTIR, SEM-EDS and DSC-TG. The FTIR spectra prove the formation of the silica network while the samples modified with PDMS exhibit the characteristic peaks of methyl groups from PDMS. In EDS, the presence of the characteristic elements of dolomite (calcium, magnesium, oxygen and carbon) can be observed. When analyzing the modified dolomite powders the presence of titanium and silicon can be observed. The characteristic morphology of the dolomite is preserved in all the samples but, the surface of the larger particles is decorated with smaller particles proving the functionalization of the dolomite, according to the two routes. The thermal analysis is characteristic for dolomite-based materials, the main difference between the samples appearing as a consequence of the burning of the organic part of PDMS, which occur between 400 and 600°C.

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Fan, Y., H. Y. Ma, Y. G. Wu, L. Li, K. Y. Tian, and Z. M. Zhao. "Topological Optimization of Piezoelectric Transducers for Vibration Reduction of Bladed Disks." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-59461.

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Abstract In this work, we develop a numerical method to determine the best distribution of piezoelectric materials on a given bladed disk, so as to minimize the added mass of shunted piezoelectric dampers. There is no constrain on the shape of piezoelectric materials, and only the overall mass is limited. The method can be applied to a single mode or several modes from the same or different modal groups. The method is based on the fact that the modal damping is solely determined by the modal electromechanical coupling factor (MEMCF) which is related to the modal stress field and the geometric of the piezoelectric materials only. A linear weighting of stress components is proposed as the criterion to determine the priority of locations for piezoelectric materials. The piezoelectric materials are introduced to the FE model by modifying the type and materials parameters of elements if they are embedded to the bladed disks; or by creating an additional layers of elements if they are bonded to the bladed disks. Details for considering multiple modes, handling polarization direction and electrode connection are also presented. The proposed procedure is applied to an empirical bladed disk with NASA-ROTOR37 profile. Results show that 12% damping ratio can be achieved for multiple modes simultaneously, if we locate piezoelectric materials on the blade with 10% added mass. When locate the piezoelectric materials on the disk and the added mass is only 5%, up to 13% modal damping ratio for the disk dominant modes can be achieved.

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Reports on the topic "Group 13 elements"

1

Plueddemann, Albert, Benjamin Pietro, and Emerson Hasbrouck. The Northwest Tropical Atlantic Station (NTAS): NTAS-19 Mooring Turnaround Cruise Report Cruise On Board RV Ronald H. Brown October 14 - November 1, 2020. Woods Hole Oceanographic Institution, January 2021. http://dx.doi.org/10.1575/1912/27012.

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The Northwest Tropical Atlantic Station (NTAS) was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air–sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 15°N, 51°W by successive mooring turnarounds. These observations will be used to investigate air–sea interaction processes related to climate variability. This report documents recovery of the NTAS-18 mooring and deployment of the NTAS-19 mooring at the same site. Both moorings used Surlyn foam buoys as the surface element. These buoys were outfitted with two Air–Sea Interaction Meteorology (ASIMET) systems. Each system measures, records, and transmits via Argos satellite the surface meteorological variables necessary to compute air–sea fluxes of heat, moisture and momentum. The upper 160 m of the mooring line were outfitted with oceanographic sensors for the measurement of temperature, salinity and velocity. Deep ocean temperature and salinity are measured at approximately 38 m above the bottom. The mooring turnaround was done on the National Oceanic and Atmospheric Administration (NOAA) Ship Ronald H. Brown, Cruise RB-20-06, by the Upper Ocean Processes Group of the Woods Hole Oceanographic Institution. The cruise took place between 14 October and 1 November 2020. The NTAS-19 mooring was deployed on 22 October, with an anchor position of about 14° 49.48° N, 51° 00.96° W in 4985 m of water. A 31-hour intercomparison period followed, during which satellite telemetry data from the NTAS-19 buoy and the ship’s meteorological sensors were monitored. The NTAS-18 buoy, which had gone adrift on 28 April 2020, was recovered on 20 October near 13° 41.96° N, 58° 38.67° W. This report describes these operations, as well as other work done on the cruise and some of the pre-cruise buoy preparations.

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