2-Ferrocenyl-N-(2-ferrocenylbenzoyl)-N-(4-methyl-2-pyridyl)benzamide

The title compound, [Fe2(C5H5)2(C30H22N2O2)], a 2:1 product of the reaction of 2-ferrocenylbenzoic acid and 2-amino-4-methylpyridine, forms a twisted molecular structure in the solid state due to steric effects from the two benzene rings ortho-substituted with ferrocenyl and carbonyl-derived groups. A short intramolecular C-H...[pi] interaction is observed involving a substituted [eta]5-C5H4 ring and an ortho H atom of the benzene ring on the opposite side of the molecule. In the crystal structure, there are no classical hydrogen bonds: interactions comprise a short C6-H...[pi](C6) interaction involving substituted benzene rings and two C-H...O=C interactions per molecule

The Magnitude and Timing of Rail Abandonment Impacts on Selected Economic Variables for Rural South Dakota Communities

This study examines the economic impacts of past branchline abandonments on rural South Dakota communities. In this chapter the factors and conditions leading to the abandonment of the branchlines are examined first. Then a section discussing the perspectives of the people and entities involved in the abandonment is presented. This is followed by the reasons for undertaking the study and the study objectives. Finally an overview of the remaining chapters is presented

Methyl 2-[(ferrocenylcarbonyl)amino]thiophene-3-carboxylate

The title compound, [Fe(C₅H₅)(C₁₂H₁₀NO₃S)], was synthesized from ferrocenecarboxylic acid and methyl 2-aminothiophene-3-carboxylate in modest yield. The substituted ring system is essentially planar through the amidothienylcarboxylate moiety, η⁵-(C₅H₄)CONH(C₄H₂S)CO₂Me, with the amido unit at an angle of 3.60 (7)° to the five-atom thienyl group, which is oriented at an angle of 3.17 (7)° to the ester moiety. The primary hydrogen bond is an intramolecular N-H...O=Ccarboxylate interaction [N...O 2.727 (2) Å], and the main intermolecular hydrogen bond involves a thienyl carboxylate and the carboxylate of a symmetry-related molecule [C...O 3.443 (3) Å]

Geologic application of thermal inertia imaging using HCMM data

Three test sites in the western US were selected to discriminate among surface geologic materials on the basis of their thermal properties as determined from HCMM data. Attempts to determine quantitatively accurate thermal inertia values from HCMM digital data met with only partial success due to the effects of sensor miscalibrations, radiative transfer in the atmosphere, and varying meteorology and elevation across a scene. In most instances, apparent thermal inertia was found to be an excellent qualitative representation of true thermal inertia. Computer processing of digital day and night HCMM data allowed construction of geologically useful images. At some test sites, more information was provided by data than LANDSAT data. Soil moisture effects and differences in spectrally dark materials were more effectively displayed using the thermal data

Methyl 2-(4-ferrocenylbenzamido)thiophene-3-carboxylate and ethyl 2-(4-ferrocenylbenzamido)-1,3-thiazole-4-acetate, a unique ferrocen

The conformations and hydrogen bonding in the thiophene and thiazole title compounds, [Fe(C₅H₅)(C₂₀H₁₄NO₃S)], (I), and [Fe(C₅H₅)(C₁₉H₁₇N₂O₃S)], (II), are discussed. The sequence (C₅H₄)-(C₆H₄)-(CONH)-(C₄H₂S)-(CO₂Me) of rings and moieties in (I) is close to being planar; all consecutive interplanar angles are less than 10°. An intramolecular N-H...O=Cester hydrogen bond [graph set S(6), N...O = 2.768 (2) Å and N-H...O = 134 (2)°] effects the molecular planarity, and aggregation occurs via hydrogen-bonded chains formed from intermolecular Car-H...O=Cester/amide interactions along [010], with C...O distances ranging from 3.401 (3) to 3.577 (2) Å. The thiazole system in (II) crystallizes with two molecules in the asymmetric unit; these differ in the conformation along their long molecular axes; for example, the interplanar angle between the phenylene (C₆H₄) and thiazole (C₃NS) rings is 8.1 (2)° in one molecule and 27.66 (14)° in the other. Intermolecular N-H...O=Cester hydrogen bonds [N...O = 2.972 (4) and 2.971 (3) Å], each augmented by a Cphenylene-H...O=Cester interaction [3.184 (5) and 3.395 (4) Å], form motifs with graph set R¹₂(7) and generate chains along [100]. The amide C=O groups do not participate in hydrogen bonding. Compound (II) is the first reported ferrocenyl-containing thiazole structure

Synthesis and characterisation of novel ferrocenyl thienyl and thiazolyl systems

Ferrocenyl derivatives are currently under investigation by our group and several series containing both amidothienyl and amidothiazolyl systems have been synthesised and characterised. The incorporation of thienyl/thiazolyl groups into a ferrocenyl- or ferrocenylphenyl system greatly enhances the number of potential donor atoms for coordination with metal fragments e.g. PtII, PdII with a view to platinum anti-cancer studies and/or interaction with guest molecules through suitable hydrogen bonding interactions. In nature, thiazole has been found to be vital in certain natural products: examples include the antibiotic bacitracin and the siderophore yersiniabactin. In therapeutic studies the antitumour compound epothilone A and myxothiazole (inhibitor) have been extensively studied

Branchline Abandonment: A study of the Impact on Selected Communities in Rural South Dakota

Several factors are responsible for the increased rate of railroad branchline abandonment in South Dakota in recent years. The construction of a statewide highway system paved the way for a trucking industry in South Dakota which today threatens the economic viability of the once-monopolistic rail industry. Some regulations and other factors inherent to South Dakota’s rail and truck industries are also responsible for increasing prominence of the trucking industry. The movement of unprocessed agricultural commodities by truck is not subject to rate or route regulation by the ICC. There are no institutional barriers to industry exit or entry. By contrast, railroad entry and exist is subject to regulation and large investment. Other factors which help explain the rate of branchline abandonment are drought, inflation, subsidization of competing transportation modes, and increased on-farm storage

Predictive Validity of Vocational Entry Measures and A Vocational Education Summative Criterion for LD Adolescents' Success in Vocational Programs

This research was published by the KU Center for Research on Learning, formerly known as the University of Kansas Institute for Research in Learning Disabilities.Historically, adolescents with specific learning disabilities (SLD) have been denied entry into vocational education programs due to vocational educators' negative assumptions about such students in terms of: (a) career choice, (b) academic skills, and (c) social behavior. In the present study, three instruments were administered to 21 SLD and 21 nonhandicapped students to measure their entry-level skills in these three areas. Entry scores were compared to summative grades earned in a regular vocational course. The results indicated that there were no significant differences between the mastery and non-mastery groups on entry scores. The ma.thematic scores on the Basic Skills Assessment and the Career Maturity Inventory score were found to be significantly related to the vocational course grade for the nonhandicapped group. Although confidence intervals for the proportions of each group who reached mastery showed that a smaller proportion of the LD group reached mastery, the confidence bands of the two groups overlapped to a great extent. Thus, it was concluded there was no significant difference between the proportion of SLD and the proportion of nonhandicapped students who reached mastery levels in a regular vocational course. That is, once LD secondary-level students enter vocational training programs, their success appears related neither to their academic deficiencies nor to their classification as LD

South Dakota Grain Production: Yesterday and Tomorrow

This bulletin provides an analysis of past and future grain production in the state of South Dakota, and examines trends between the years of 1963 and 1978

Time transfer between the Goddard Optical Research Facility and the U.S. Naval Observatory using 100 picosecond laser pulses

A horizontal two-way time comparison link in air between the University of Maryland laser ranging and time transfer equipment at the Goddard Optical Research Facility (GORF) 1.2 m telescope and the Time Services Division of the U.S. Naval Observatory (USNO) was established. Flat mirrors of 25 cm and 30 cm diameter respectively were placed on top of the Washington Cathedral and on a water tower at the Beltsville Agricultural Research Center. Two optical corner reflectors at the USNO reflect the laser pulses back to the GORF. Light pulses of 100 ps duration and an energy of several hundred microjoules are sent at the rate of 10 pulses per second. The detection at the USNO is by means of an RCA C30902E avalanche photodiode and the timing is accomplished by an HP 5370A computing counter and an HP 1000 computer with respect to a 10 pps pulse train from the Master Clock